Elementary Vocabulary
36,007 words and 29 expressions at the elementary level.
The fifteenth letter of the English alphabet, called o and written in the Latin script.
Abbreviation of owe money, pay money: an admonition to debtors, especially by loansharks (Ah Longs).
origin and destination
Alternative form of obs and gynae (British, Commonwealth, not Canada)
Initialism of organization and methods.
Abbreviation of owned and operated.
Initialism of olefin and surfactant.
Contraction of of, usually before consonants.
Contraction of over
plural of the letter o
A blood type that has no antigens. It lacks the A, B and Rh factors on the blood cells. It is the universal donor for blood and can give blood to any blood type, but can only receive O- blood.
A visa granted to temporary alien workers with exceptional abilities.
A visa granted to temporary alien workers with exceptional abilities in science, education, business or athletics.
A visa granted to temporary alien workers with exceptional abilities in the movie or television industries.
plural of O-1
Abbreviation of Ohio.
Abbreviation of Orange County, New York.
Alternative form of OD.
Alternative form of OG.
Initialism of Order of Merit.
Initialism of old series.
Alternative form of OZ (“ounce”).
Abbreviation of overdrive.
ore/oil ; designating that a ship can carry both ore and oil
Alternative form of ORM.
Initialism of overt/withhold.
plural of O/W
Abbreviation of observability.
Both eyes.
Initialism of on or about.
Initialism of overactive bladder.
plural of OAB
Initialism of oral anticoagulant.
plural of OAC
Obsolete form of woad.
Initialism of optical add/drop multiplexer.
plural of OAE
plural of oaf
plural of OAG
The third-largest island of Hawaii, included in the City and County of Honolulu.
A male given name.
A deciduous tree with distinctive deeply lobed leaves, acorns, and notably strong wood, typically of England and northeastern North America, included in genus Quercus.
A village and civil parish in Somerset, England, previously in Somerset West and Taunton district (OS grid ref ST1525).
plural of oak
Initialism of Oxford Advanced Learner's Dictionary (of Current English).
Initialism of Once-a-month cooking.
Initialism of One America News.
A female given name.
Initialism of One America News Network.
Initialism of Orthogonal Array Processor.
plural of OAP
A type of lever used to propel a boat, having a flat blade at one end and a handle at the other, and pivoted in a rowlock atop the gunwale, whereby a rower seated in the boat and pulling the handle can pass the blade through the water by repeated strokes against the water's resistance, thus moving the boat.
Obsolete spelling of oar.
A coastal settlement in north Canterbury, New Zealand.
Initialism of Old-Age Revolving Pension.
plural of oar
A coconut plantation.
Like an oar
Initialism of oral allergy syndrome.
Initialism of old age and survivors insurance.
A kiln for drying tobacco, malt and especially hops.
Widely cultivated cereal grass, typically Avena sativa.
plural of oat
Containing oats.
Initialism of Organisation of African Unity.
Initialism of original animation video, a direct-to-video Japanese anime.
plural of OAV
Abbreviation of Oaxaca: a state of Mexico.
a halfpenny
Alternative form of Ob (“Russian river”).
Against; facing; a combining prefix found in verbs of Latin origin.
Abbreviation of oboe.
A king of a Yoruba polity.
Abbreviation of Obadiah.
A chief of the Temne people of Sierra Leone.
A town in Argyll and Bute council area, Scotland (OS grid ref NM8530).
plural of oba
Abbreviation of obbligato.
Initialism of One Big Beautiful Bill.
To keep under police observation.
plural of OBC
Initialism of on-board diagnostic.
plural of OBD
Abbreviation of obedient, at one time used in correspondence.
Initialism of Office of Bilingual Education.
Alternative form of obeah.
The son of Ruth and Boaz, father of Jesse and grandfather of David, grandson of Naomi.
The quality of being obedient.
Willing to comply with the commands, orders, or instructions of those in authority; biddable.
A surname from German.
plural of obe
A small, crescentic fold of white matter that covers the inferior angle of the floor of the fourth ventricle.
To do as ordered by (a person, institution etc), to act according to the bidding of.
A sash worn with a kimono.
Alternative form of obeah.
A small lamp positioned over the camera, sometimes used to produce catchlights in the subject's eyes.
plural of obi
Abbreviation of object.
Abbreviation of object.
Clipped compound of Objective-C.
A thing that has physical existence but is not alive.
plural of obj
Initialism of Osama bin Laden.
Extremely offensive or unpleasant; very annoying, contemptible, or odious.
Alternative form of ovoo (“Mongolian cairn”).
A silver coin of Ancient Greece.
A Japanese festival to honor the spirits of one's ancestors.
Alternative form of ovoo (“Mongolian cairn”).
Initialism of One Belt One Road, a 21st-century international development program of the Chinese government, now known as the Belt and Road Initiative. Chinese: 一带一路.
plural of obo.
Alternative form of oh boy.
Initialism of on-base percentage.
Initialism of Office for Budget Responsibility.
plural of OBR
Alternative form of obs (obsolete)
Abbreviation of obstetrics.
A surname from German.
Something that impedes, stands in the way of, or holds up progress, either physically or figuratively
Initialism of orange baboon tarantula.
plural of OBT
Acronym of On-Board Unit.
Initialism of operations in built-up areas.
plural of OBU
Initialism of on-balance volume
Abbreviation of obvious.
Abbreviation of Outer Banks.
Archaic form of obeah.
Abbreviation of October.
Abbreviation of October.
Any of species Oxalis tuberosa (syn. Oxalis crenata), which bear edible tubers.
plural of oca
Initialism of Oil, Chemical and Atomic Workers International Union.
Initialism of oligoclonal band.
Initialism of Oversea-Chinese Banking Corporation.
plural of OCB
Initialism of Office of the Comptroller of the Currency.
A favorable opportunity; a convenient or timely chance.
Initialism of organized crime control bureau of the New York Police Department.
Initialism of oculocerebrocutaneous syndrome
To fill.
Initialism of obsessive-compulsive disorder.
Initialism of Office of Congressional Ethics.
Initialism of Open Container Format, a sub-specification of EPUB.
Initialism of Oracle Cluster File System.
Initialism of organised crime group.
plural of OCG
general interjection of confirmation, affirmation, and often disapproval.
Japanese tea, usually green tea.
A line behind which a player's front foot must be placed when throwing a dart.
Initialism of Office of Civilian Human Resources.
A surname.
Initialism of Overseas Citizenship of India (permanent residency scheme granted to people of Indian origin)
A man of Middle Eastern descent that runs a deli or bodega, typically in New York.
Alternative form of occy (“octopus”).
Initialism of Object Constraint Language, a declarative language developed at IBM that is now part of the UML standard.
Initialism of Online Computer Library Center (formerly Ohio College Library Center).
Initialism of original currency and amount, describing payments between banks, in messages using the SWIFT standard.
Initialism of OCLC control number.
plural of OCN
Initialism of one cancels other, a type of order.
A surname from Spanish.
plural of OCO
Initialism of oral contraceptive pill.
Initialism of obsessive-compulsive personality disorder.
plural of OCP
Initialism of Oxford, Cambridge & RSA (examination board).
Alternative spelling of okra.
Alternative spelling of okra.
Alternative form of okra.
third-person singular simple present indicative of OCR
plural of OC
Abbreviation of October.
Form of octa- or octo- used before a vowel.
Abbreviation of October.
The proportion of the sky that is obscured by clouds, in eighths (one octa means that one eighth of the sky is obscured, two octas that one quarter is obscured, and so on).
A polygon with eight sides and eight angles.
Initialism of Organised Crime and Triad Bureau.
Abbreviation of Oil Country Tubular Goods. Tubing, casing and drill pipes manufactured according to API Specification 5CT.
To put (or attempt to put) one's fingers, hands or arms in many things or places at roughly the same time.
Alternative form of Octr. (10th month of the Western Calendar)
Initialism of One Country, Two Systems, the political structure by which Hong Kong and Macau are administered separately from mainland China. Chinese: 一國兩制／一国两制 (yī guó liǎng zhì).
Initialism of officer cadet training unit.
Obsolete spelling of oakum.
Initialism of Overseas Contract Worker.
(Euphemistic form of) God.
simple past and past participle of OD
A room within a harem.
Alternative form of oda (“room in a harem”).
Among the early and medieval Teutonic peoples, especially Scandinavians, the heritable land held by the various odalmen constituting a family or kindred of freeborn tribesmen.
plural of oda
A male given name from Arabic.
Initialism of OpenDocument Database.
Initialism of Open Database Connectivity.
Initialism of Open Database License, a copyleft license.
plural of ODC
Differing from what is usual, ordinary or expected.
Contraction of out of.
An eccentric or unusual person.
The state or quality of being odd.
The ratio of the probability of an event happening to that of it not happening.
An English surname.
plural of odeon
simple past and past participle of OD
A Japanese one pot winter dish, of varying ingredients.
A river in central Europe, that flows from the Czech Republic through Poland and Germany to the Baltic Sea.
plural of ode
Initialism of OpenDocument format.
Initialism of OpenDocument Graphics.
Initialism of Opiate Detoxification Institute.
The official language of the state of Odisha, India.
Of or pertaining to odes.
A diminutive of the male given names Odell, Odin, Ogilvie, Otis, Odysseus, Odicea, Odoardo, or Odunayo, also used as a formal given name.
A major Germanic god, often described as chief of the pantheon, in his Norse form a member of the Æsir, married to Frigg and associated with knowledge, poetry and war. Wednesday refers to him by way of interpretatio germanica.
plural of ODI
A surname.
Initialism of Original Design Manufacturer, a company that designs and manufactures a product that will be rebranded for sale by another company.
Initialism of ordnance datum Newlyn, used to judge the height above/below sea level in England, from the MSL (mean sea level) in Newlyn between 1915 and 1921.
Synonym of organellar DNA (initialism)
Abbreviation of Office of the Director of National Intelligence.
Initialism of Oxford Dictionaries Online.
Relating to roads.
A surname from Middle English.
Any smell, whether fragrant or offensive.
plural of ODO
Acronym of Ohio Department of Transportation.
Initialism of Open Distributed Processing.
plural of ODP
Initialism of Ogden discount rate.
plural of ODR
Initialism of OpenDocument Spreadsheet.
Expressing surprise or affirmation.
Initialism of OpenDocument Text.
plural of ODT
Initialism of Old Dominion University.
Synonym of mvule ("a tree of species Milicia excelsa")
Initialism of Ocean Data View.
Obsolete spelling of odyle.
Initialism of Old English.
Alternative form of OE.
A city in Libya, one of the three cities of historical Tripoli, the one that would survive and take Tripoli as its modern name.
Initialism of occupational exposure band.
Initialism of Old Earth creationism.
Initialism of Organisation for Economic Co-operation and Development.
plural of oecus
plural of OEC
Initialism of Oxford English Dictionary.
Initialism of overall equipment effectiveness.
simple past and past participle of OE
Initialism of Operation Enduring Freedom.
A surname, most commonly found in Indonesia.
Initialism of On-Line Encyclopedia of Integer Sequences.
Initialism of Oracle Enterprise Linux.
plural of OEL
A company that produces parts to be sold under another company's brand.
plural of OEM
An uninhabited coral atoll in the South Pacific Ocean, part of the Pitcairn Islands overseas territory.
Initialism of Office of Economic Opportunity.
Abbreviation of Old Executive Office Building, the former name of the Eisenhower Executive Office Building in Washington, DC.
plural of OEO
Initialism of open educational resources.
plural of oe
Alternative form of OES.
An egg.
Initialism of open-eye visual: a psychoactive effect seen with the eyes open.
plural of OEV
A surname, most commonly found in Indonesia.
A regulatory body for a specified industry.
Alternative form of OF.
Abbreviation of order for arrest.
Initialism of Office of Foreign Assets Control, a financial intelligence and enforcement agency of the U.S. Treasury Department.
Alternative form of ophan.
plural of OFA
Initialism of Overseas Filipino Bank.
Initialism of older father's brother's daughter; father's brother's daughter older than oneself.
Initialism of older father's brother's son; father's brother's son older than oneself.
Oceania Football Confederation
Abbreviation of official.
Abbreviation of officer.
plural of OFC
Initialism of orthogonal frequency division multiplexing.
Alternative form of oh for.
A facility used for trading in stocks that are not quoted on any London stock exchange
Away from; off.
Officer.
Pronunciation spelling of offer.
A crime or sin.
A proposal that has been made.
To provide (someone) with an office.
To supply with officers.
An office holder, a person holding an official position in government, sports, or other organization.
Pronunciation spelling of off, representing African-American Vernacular English.
third-person singular simple present indicative of off
Initialism of Office of Film and Literature Classification.
Initialism of orthodox file manager.
plural of OFM
An Igbo staff of authority.
plural of ofo
Initialism of Office of the Federal Register.
plural of OF
Abbreviation of Office of Financial Sanctions Implementation.
Initialism of orange-fleshed sweet potato.
often; frequently; not rarely
Abbreviation of often.
Initialism of Overseas Filipino Worker.
Initialism of open feedwater heater.
plural of OFW
Initialism of older father's sister's daughter; father's sister's daughter older than oneself.
Initialism of older father's sister's son; father's sister's son older than oneself.
Initialism of own goal.
A chief, employer, or superior.
Synonym of Greenland cod.
Alternative spelling of Ogham.
A surname from Spanish.
Initialism of Old God Baby; a conditional character conceived through the Dark Ritual in Dragon Age: Origins, or any character theorized by fans to have had a similar conception.
Initialism of Old German Baptist Brethren.
Initialism of office of the general counsel.
plural of OGC
Initialism of oesophagogastroduodenoscopy.
plural of OGD
A surname
A double curve in the shape of an elongated S; an object of that shape.
An open bitstream container file format for audio, video, and other multimedia content.
A Cornish pasty.
An Armenian spirit distilled from fruits or berries.
A fermented cereal porridge from West Africa, typically made from maize, sorghum, or millet.
A large body of water including the sea or the ocean.
Initialism of Object-Graph Navigation Language.
ogonori
A barangay of Donsol, Sorsogon, Philippines.
The Joint State Political Directorate (Russian: Объединённое государственное политическое управление), the intelligence and state security service and secret police of the Soviet Union from 1923 to 1934.
A commune and village in Mureș County, Romania.
A type of brutish giant from folk tales that eats human flesh.
plural of og
Initialism of oral glucose tolerance test.
A male given name from Yoruba.
Abbreviation of Ohio: a state of the United States.
Abbreviation of Ohio.
Initialism of Office of Hearings and Appeals (US SSA).
Deliberate misspelling of oh hi.
A village and semi-rural community in Horowhenua district, Manawatū-Whanganui, New Zealand.
Initialism of Old Headquarters Building: the old location of the headquarters of the CIA.
Initialism of overhead cam.
plural of OHC
Initialism of Old High Dutch.
simple past and past participle of oh
A structure erected over the grave of a great and righteous person.
Initialism of Old High German.
Alternative form of OHG (Old High German).
A surname from Bengali.
in Hawaii: the lehua, Metrosideros polymorpha (native to Hawaii)
Acronym of Office for Harmonization in the Internal Market.
Acronym of Ontario health insurance plan.
plural of Ohi
Initialism of one-hit kill.
An instance of defeating an opponent with a single attack; a one-hit knockout.
plural of OHK
A surname from German.
Initialism of overhead line equipment (overhead lines, and supporting infrastructure, that provide power to electric trains).
plural of Ohl
Initialism of On Her Majesty's/His Majesty's Service.
Alternative form of on (“without”).
Expressing surprise or gloating realisation; aha.
Alternative form of ahoy.
Initialism of overhead projector.
plural of OHP
plural of oh
Initialism of ovarian hyperstimulation syndrome.
A surname from Japanese.
A kind of rural commune established in New Zealand under a government scheme of the mid-1970s.
plural of ohu
Initialism of off-highway vehicle.
plural of OHV
Said to get someone's attention; hey.
Synonym of oi (a genre of British punk rock)
Initialism of Old Indo-Aryan.
Initialism of officer in the case.
Abbreviation of Old Icelandic.
A short river in the Great Glen, between Loch Oich and Loch Ness, Highland council area, Scotland.
plural of OIC
Initialism of office ID.
Initialism of OpenID Connect, an authentication layer on top of OAuth 2.0.
plural of OID
Initialism of Operation Iraqi Freedom.
Initialism of office of the inspector general.
plural of OIG
plural of oik
Liquid fat.
A container with a long spout, for holding oil and delivering it in drops or small quantities for lubrication.
Obsolete form of oil
plural of oil
Covered with or containing oil.
Initialism of International Organization of Legal Metrology (French abbreviation).
Alternative form of Oinam.
To anoint.
A viscous preparation of oils and/or fats, usually containing medication, used as a treatment or as an emollient.
A region of Guinea-Bissau.
An Ancient Egyptian dry measure of volume equivalent to 4 heqats (about 19.2 litres or 0.54 bushels).
Abbreviation of Old Irish.
Alternative form of Oirat.
plural of oi
Initialism of one-instruction set computer
Acronym of Ontario Institute for Studies in Education, of the University of Toronto.
Initialism of Oregon Institute of Science and Medicine.
Abbreviation of Old Italian.
The capital city of Ōita Prefecture, Japan.
Initialism of on job.
A city in Ventura County, California, United States.
A motorcycle taxi in Indonesia.
A sorcerer or folk healer in parts of India and Nepal.
Online Journalism Review
plural of OJ
Initialism of on-the-job training.
Endorsement; approval; acceptance; acquiescence.
simple past and past participle of OK
plural of OK
Abbreviation of Oklahoma: a state of the United States.
A former Turkish, Egyptian, Hungarian, and Romanian unit of weight, usually of a little more than a kilogram.
A ghost town in Nunatsiavut, Newfoundland and Labrador.
plural of oka
Alternative spelling of OK.
A special design bureau of the Soviet Union, that performed experimental research and development.
plural of OKB
Abbreviation of Oklahoma City.
simple past of ache
simple past and past participle of OK
Dated form of OK.
Interest on money; usury; increase.
plural of oke
A Turkish game in which players attempt to collect certain groups of tiles.
Initialism of Open Knowledge Foundation.
A surname from Japanese.
plural of Oki
Alternative form of oka.
Alternative form of Okla.: Abbreviation of Oklahoma: a state of the United States.
A dialect cluster spoken in Nigeria.
Alternative form of OKRs (“objectives and key results”).
Alternative form of okra.
Initialism of objectives and key results.
Alternative form of okra.
plural of OK
One eighth of the total area of the celestial dome; used as a measure of cloudiness (one okta means that one eighth of the sky is obscured, two oktas that one quarter is obscured, and so on).
initialism of Orang Kurang Upaya (“person with disabilities, special needs person”)
A surname from Polish.
Alternative form of okra.
(attributive)
Abbreviation of Olympiad.
Alternative form of olay.
A male given name from Old Norse.
Alternative form of ollamh
Acronym of online analytical processing.
plural of ola
palm leaves, prepared for being written upon with a steel-tipped stylus
Initialism of Office of Legal Counsel (of the U.S. Justice Department).
Archaic spelling of old.
On-Line Data Interchange: A Eurocontrol standard used in ATC systems in order to exchange information about flights crossing the border between the two ATC units. The messages described by this standard use ICAO subfields.
The state of being old; age.
A surname.
Alternative spelling of oldie.
An interjection used to stir up excitement.
Acronym of organic light-emitting diode.
A male given name from the Slavic languages.
A Jew who has recently made aliyah to Israel; an immigrant to Israel.
A type of energy-absorbing landing gear strut in which sudden compression or extension of the strut causes a gas-filled chamber to push or pull a piston which forces oil through a small orifice, resulting in absorption of energy through viscous effects.
A unit measuring the strength of an olfactory pollution source as detected by an average adult in typical conditions.
plural of olf
A female given name from Russian, Ukrainian, or Belarusian.
A transliteration of the Ukrainian female given name О́льга (Ólʹha)
Office of the Leader of the House of Commons
Office of the Leader of the House of Lords
A diminutive of the male given name Oliver.
evil-smelling; fetid.
plural of oleh
A male given name.
A tree of species Olea europaea cultivated since ancient times in the Mediterranean for its fruit and the oil obtained from it.
A surname from German.
plural of Olk
Initialism of orientation of the last layer: placing all the cubies of the last layer so that the last-layer colour of each cubie is facing the last layer.
A cooking-pot or earthenware jar used in Spain and Spanish-speaking countries.
A diminutive of the female given name Olivia.
Proteus anguinus, a cave-dwelling neotenous salamander with external gills, found along the coast from northeastern Italy to Montenegro.
plural of olm
A highly saturated impossible color shade of blue-green produced by directly stimulating the "m" ("green") cone cells, approximating the below
Alternative form of Wolof.
Initialism of ordinary language philosophy.
Initialism of One laptop per child, a charity.
Originally, a leather flask or vessel for oils or liquids; afterward, an earthenware vase or pitcher without a spout.
Initialism of Order for Lifelong Restriction.
plural of OLR
Abbreviation of optical landing system.
plural of OLS
A county of Romania.
Initialism of One Life to Live: an American television soap opera broadcast from 1968 to 2013.
Initialism of online transaction processing.
plural of OLT
A surname.
The station code of Olympic in Hong Kong.
A transliteration of the Russian or Ukrainian female given name Оля (Olja)
A river in central Europe.
An expression of excitement. Hooray!
A sacred, mystical syllable used in prayer and meditation.