a small apartment consisting basically, apart from a bathroom, of a single room with a kitchenette
efficiency apartment in American English
noun
a small apartment consisting typically of a combined living room and bedroom area, a bathroom, and a kitchenette
Also called: efficiency
Word origin
[1925–30]This word is first recorded in the period 1925–30. Other words that entered Englishat around the same time include: Nazi, dropout, gimmick, hot spot, turnaround