apartment house

from the GNU version of the Collaborative International Dictionary of English.

• A building comprising a number of lving units (apartments{4}) designed for separate housekeeping tenements, but having conveniences, such as heat, light, elevator service, etc., furnished in common; contrasted to a detached dwelling. Sometimes distinguished in the United States from a flat house, in which each living unit comprises one entire floor, whereas in an apartment house a floor may be partitioned into any number of apartments{4}.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

• noun a building that is divided into apartments