front door
noun
RareNot in standard dictionaries
1
The door at the main entrance to a building or house, normally fronts onto a street.
2
The entire main entrance to a building or house.
3
The habitual or designated main entrance to a room that has more than one door.
4
The normal portal page to a website.
5
The path of a pitch which starts inside and then slides over the plate.
6
vagina or penis, as a means of sexual intercourse, contrasted with the anus or "back door"
#slang