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on alert
adjective as in on call
adjective as in vigilant
Example Sentences
“Everybody was on alert because little balls of grease drifted out. People floated backwards, like in the Matrix film, to dodge the balls of meat juice.”
Two weeks after flash floods caused devastation in eastern Spain, several areas of the nation are on alert again.
Several other regions in Spain remain on alert as the new weather front is expected to bring torrential rain and low temperatures just weeks after the country was devastated by flash floods that have so far killed more than 220 people.
Two weeks after flash floods caused devastation in eastern Spain, several areas of the country are on alert, with a new weather front expected to bring torrential rain and low temperatures.
The school asked everyone on campus to remain indoors and be on alert.
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From Roget's 21st Century Thesaurus, Third Edition Copyright © 2013 by the Philip Lief Group.
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