vigilance

[vij-uh-luhns]
noun
1.
state or quality of being vigilant; watchfulness: Vigilance is required in the event of treachery.
2.
Pathology, insomnia.

Origin:
1560–70; alteration (-ance for -ancy) of obsolete vigilancy < Latin vigilantia; see vigilant, -ancy

hypervigilance, noun
nonvigilance, noun
previgilance, noun
supervigilance, noun


1. alertness, attention, heedfulness, concern, care.
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World English Dictionary
vigilance (ˈvɪdʒɪləns)
 
n
1.  the fact, quality, or condition of being vigilant
2.  the abnormal state or condition of being unable to sleep

Collins English Dictionary - Complete & Unabridged 10th Edition
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Etymonline
Word Origin & History

vigilance
1560s, from Fr. vigilance, from L. vigilantia "wakefulness," from vigilia (see vigil).
Online Etymology Dictionary, © 2010 Douglas Harper
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Example sentences
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.
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