noun Slang.
a government agent or detective charged with the enforcement of laws restricting the use of narcotics.
Also, nark.

1965–70, Americanism; shortening of narcotic Unabridged


variant of narco- before a vowel: narcoma. Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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World English Dictionary
narc (nɑːk)
slang (US) a narcotics agent

Collins English Dictionary - Complete & Unabridged 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009
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Word Origin & History

1967, Amer.Eng. slang, shortened form of narcotics agent (earlier narco). Had been used 1955 for narcotics hospital, 1958 for narcotics addict. Sense and spelling tending to merge with older but unrelated nark (q.v.).
Online Etymology Dictionary, © 2010 Douglas Harper
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American Heritage
Abbreviations & Acronyms
narcotics agent
The American Heritage® Abbreviations Dictionary, Third Edition
Copyright © 2005 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
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Example sentences
If you narc out another officer you will probably pay for it.
When their connection arrives, he suspects the filmmaker of being a narc and abruptly runs away.
Related Words
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