sinus
A pouch or cavity in a bone or other tissue, especially one in the bones of the face or skull connecting with the nasal cavities (the paranasal sinus).
An irregular venous or lymphatic cavity, reservoir, or dilated vessel.
Relating to or denoting the sinoatrial node of the heart or its function of regulating the heartbeat.
An abnormal cavity or passage such as a fistula, leading from a deep-seated infection and discharging pus to the surface.
A rounded notch or depression between two lobes or teeth in the margin of a leaf or petal.
A bay of the sea; a recess in the shore.
Synonym of sine.
Sound Patterns & Rhymes
Rhymes
Words that share the same ending sound pattern
Alliteration
Words starting with the same consonant sound — used in poetry and prose to create rhythm, emphasis, and memorable phrasing (e.g. “Peter Piper picked”)
Assonance
Words sharing similar vowel sounds regardless of starting letter — creates internal melody in writing