vigilance

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vigilance

the abnormal state or condition of being unable to sleep
Collins Discovery Encyclopedia, 1st edition © HarperCollins Publishers 2005
References in classic literature ?
In vain may the most vigilant and cruel savages beset his path; in vain may rocks and precipices and wintry torrents oppose his progress; let but a single track of a beaver meet his eye, and he forgets all dangers and defies all difficulties.
Heyward, who watched his movements with a vigilant eye, carelessly extricated one of his feet from the stirrup, while he passed a hand toward the bear-skin covering of his holsters.
Beekeepers are asked to remain vigilant following an outbreak of American Foulbrood (AFB) in an apiary near Pitlochry.
The Philippine National Police (PNP) on Monday said that would remain vigilant during the nationwide celebration of Eid'l Adha what had been a peaceful day so far.
Summary: New Delhi [India], Jun 21 (ANI): In view of the recent attacks on expatriates and foreign nationals living in Ethiopia's capital Addis Ababa, India on Friday advised its citizens travelling to the African country to be "vigilant and observe necessary precautions" to stay safe.
Be vigilant and report possible election-related irregularities.
But on HMS Vigilant, engineering technician David Thomson, 26, from Glasgow, said: "I don't find it bad on board at all.
Continue to remain vigilant and avoid large crowds," the US Embassy tweeted.
Tumour vigilant. It can drive you mad but it can save a life.
Summary: Be vigilant and check the source before clicking.
POLICE are urging motorists to be extra vigilant after a woman's handbag was snatched from her car.
Some vigilant residents, however, approached the madman and found in his bag some charms and two handsets in his pocket.