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q.t.

or Q.T.

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Informal.
  1. quiet.
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Idioms
  1. on the q.t., stealthily; secretly: to meet someone on the q.t.
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Origin of q.t.

First recorded in 1905–10
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

British Dictionary definitions for q.t.

q.t.

abbreviation for informal
  1. quiet
  2. on the q.t. secretly
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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

Word Origin and History for q.t.

n.

slang for "quiet," in phrase on the q.t., attested from 1874. Phrase on the quiet appears from 1847.

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Online Etymology Dictionary, © 2010 Douglas Harper

Idioms and Phrases with q.t.

Q.T.

see on the Q.T.

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The American Heritage® Idioms Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.