an apartment with rooms on two connected floors.
Is It “Sometime,” “Sometimes,” Or “Some Time”?While they appear very similar, sometime, sometimes, and some time have slightly different meanings. Sometime means a vague point in time, and usually refers to a long amount of time. Sometimes means occasionally. Some time refers to a period of time. Sometime Sometime refers to an unspecified point in time. It functions as an adverb, and is also synonymous with someday, one day, or sooner …
Origin of duplex apartment
An Americanism dating back to 1935–40
Also called duplex.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
British Dictionary definitions for duplex apartment
US and Canadian an apartment on two floors
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012