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British Dictionary definitions for sniff out

sniff out

verb
  1. (tr, adverb) to detect through shrewdness or instinct
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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

Idioms and Phrases with sniff out

sniff out

Uncover, as If there's anything to that rumor, Gladys will sniff it out. This expression alludes to an animal sniffing for prey. [First half of 1900s]

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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.