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watchdog

[woch-dawg, -dog] /ˈwɒtʃˌdɔg, -ˌdɒg/
noun
1.
a dog kept to guard property.
2.
a watchful guardian:
a self-appointed watchdog of the public morals.
adjective
3.
of, relating to, or characteristic of a watchdog.
4.
organized or functioning as a watchful guardian, especially against illegal or unethical conduct:
a watchdog group in the legislature.
verb (used with object), watchdogged, watchdogging.
5.
to watch carefully, especially so as to detect illegal or unethical conduct.
Origin
1600-1610
1600-10; watch + dog
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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British Dictionary definitions for watch-dog

watchdog

/ˈwɒtʃˌdɒɡ/
noun
1.
a dog kept to guard property
2.
  1. a person or group of persons that acts as a protector or guardian against inefficiency, illegal practices, etc
  2. (as modifier): a watchdog committee
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
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Word Origin and History for watch-dog

watchdog

n.

c.1600, from watch (v.) + dog (n.). Figurative sense is attested from 1845.

Online Etymology Dictionary, © 2010 Douglas Harper
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13
13
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