9 Grammatical Pitfalls


[vij-uh-luh ns] /ˈvɪdʒ ə ləns/
state or quality of being vigilant; watchfulness:
Vigilance is required in the event of treachery.
Pathology, insomnia.
Origin of vigilance
1560-70; alteration (-ance for -ancy) of obsolete vigilancy < Latin vigilantia; see vigilant, -ancy
Related forms
hypervigilance, noun
nonvigilance, noun
previgilance, noun
supervigilance, noun
1. alertness, attention, heedfulness, concern, care. Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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Examples from the web for vigilance
  • And yet, despite setbacks and constant self-vigilance, both could finally begin to see the glimmer of another possibility.
  • Unfortunately, the preservation of shared governance requires vigilance-and even fierceness-on the part of faculty members.
  • Yet he has slipped away in a lapse of adult vigilance.
  • The history of the art form depends on the critic's vigilance and his eloquence.
  • But a clipping recently landed on my desk that reminded me that vigilance, eternal it would seem, is indeed the price of liberty.
  • Cats could hunt the rodents attracted to the settlements without constant fear and vigilance against larger predators.
  • To detect and record them would require constant vigilance of millions of stars over many years with hundreds of telescopes.
  • For example, precocial chicks of geese and ducks spend much of the day feeding under vigilance of parents.
  • With so little scientific research and far too much pseudo science the subject is unlikely to be solved by our vigilance alone.
  • It takes practice, vigilance, and a knowledge of the types of errors you yourself tend to make.
British Dictionary definitions for vigilance


the fact, quality, or condition of being vigilant
the abnormal state or condition of being unable to sleep
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 vigilance

1560s, from French vigilance, from Latin vigilantia "wakefulness," from vigilia (see vigil).

Online Etymology Dictionary, © 2010 Douglas Harper
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