Real Dictionary

front
The front of a building is the side or part of it that faces the street.
The front of something is the part of it that faces you, or that faces forward, or that you normally see or use.
singular noun: A person's or animal's front is the part of their body between their head and their legs that is on the opposite side to their back.

front in American English
noun: the foremost part or surface of anything

front in American English 1
the forehead

front in American English 2
frontispiece

front in British English
of, at, or in the front
noun: that part or side that is forward, prominent, or most often seen or used

front in Chemical Engineering
noun: A front is a band of separated solute in a chromatography process.

front. in American English
abbreviation: frontispiece

front. in British English
abbreviation for: frontispiece