When referring to a residence, the letters APT stand for "Apartment." An apartment is one room, or set of rooms, which is living space leased out to people. A suite is similar, but it is always a group of rooms. A "loft apartment," for instance, could be one grand space, with perhaps a kitchen in one corner, and a Murphy bed hidden against a wall during the day, and pulled out at night. A suite would have separate rooms in which to cook and sleep.
Updated on Wednesday, February 01 2012 at 10:09PM EST