Origin: Latin suffix -ment
Apartment has 2 different meanings across 1 category:
A complete domicile occupying only part of a building, especially one for rent; a flat.
"After months of searching, we finally found an affordable apartment in the city center that included all our utilities."
In plain English: An apartment is a self-contained housing unit that occupies part of a building and shares walls, floors, or ceilings with other units.
"They are looking for a small apartment near the city center."
Usage: Use "apartment" to refer to a self-contained living unit within a larger multi-unit building, particularly when emphasizing that it is rented or part of an apartment complex. It distinguishes the space from a standalone house by highlighting its shared structure with neighbors above or below.
The word apartment comes from the French appartement, which borrowed it from the Italian appartamento. It originally meant "separation" or "seclusion," a sense that evolved to describe separate living quarters in English.