Campers must be on the alert for poison ivy and poison oak.
Drivers must be on the alert for traffic signals.
Словарь американских идиом. — СПб., Изд-во "Лань". Оригинал: A.Маккей, М.Т.Боткер, Дж.И.Гейтс. 1997.
On the alert — Alert A*lert , n. (Mil.) An alarm from a real or threatened attack; a sudden attack; also, a bugle sound to give warning. We have had an alert. Farrow. [1913 Webster] {On the alert}, on the lookout or watch against attack or danger; ready to act … The Collaborative International Dictionary of English
on the alert — phrasal : on the lookout for or watch against attack or danger : ready to act * * * on the alert phrase paying attention to what is happening and ready to react quickly if necessary Police warned residents to be on the alert for bogus salesmen.… … Useful english dictionary
on the alert — {adj. phr.} Alert; watchful; careful. * /Campers must be on the alert for poison ivy and poison oak./ * /Drivers must be on the alert for traffic signals./ Compare: ON ONE S TOES … Dictionary of American idioms
on the alert — {adj. phr.} Alert; watchful; careful. * /Campers must be on the alert for poison ivy and poison oak./ * /Drivers must be on the alert for traffic signals./ Compare: ON ONE S TOES … Dictionary of American idioms
upon the alert — ▪ On the watch ▪ Wakefully attentive ● alert … Useful english dictionary
on the alert — adjective Very attentive, or vigilant Wild animals have to be constantly on the alert for predators … Wiktionary
on the alert — index careful Burton s Legal Thesaurus. William C. Burton. 2006 … Law dictionary
on the alert — начеку, настороже They must be constantly on the alert for enemy рlanes … Idioms and examples
on the alert — paying attention to what is happening and ready to react quickly if necessary Police warned residents to be on the alert for bogus salesmen … English dictionary
be on the alert — index beware, patrol Burton s Legal Thesaurus. William C. Burton. 2006 … Law dictionary
