n., pl., -ties.
- Deliberate deceptiveness in behavior or speech.
- An instance of deliberate deceptiveness; double-dealing.
- The quality or state of being twofold or double.
[Middle English duplicite, from Old French, from Late Latin duplicitās, doubleness, from Latin duplex, duplic-, twofold.]
The American Heritage® Dictionary of the English Language, Fourth Edition Copyright © 2007, 2000 by Houghton Mifflin Company. Updated in 2009. Published by Houghton Mifflin Company. All rights reserved.