Synonyms|1.4kAntonyms|370|Broader|31Narrower|60Related|1.3k

199 entries under expression topic. ×

14
on the lookout(adjective, idiom, care, lively)
12
on the ball(adjective, idiom, adverb, keen)
12
on guard(adjective, idiom, adverb, keen)
10
wide awake(adjective, idiom, sharp, bright)
8
tip off(noun, verb, phrasal verb, order)
7
qui vive(noun, idiom)
5
on the alert(idiom, activity, care, disturbed)
5
on the job(adjective, idiom, keen, sharp)
5
warning signal(noun, idiom, sign, guide)
4
all ears(adjective, sharp, bright, lively)
4
give notice(verb, idiom, report, advise)
4
on one's toes(adjective, idiom, lively, attentive)
3
alarm bell(idiom, warning, bell, siren)
3
give warning(verb, order, prompt, inform)
3
high sign(noun, idiom, sign, cry)
3
with it(adjective, understanding, keen, sharp)
2
alarm clock
2
alarm signal
2
au courant(adjective, understanding, keen, sensible)
2
au fait(adjective, familiar, skilled, competent)
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ChicagoSmart Define. 2016. "alert thesaurus" https://smartdefine.org/alert/thesaurus/synonyms (accessed September 22, 2026).
HarvardSmart Define 2016, alert thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/alert/thesaurus/synonyms>.
MLASmart Define. "alert thesaurus" 26 February 2016. Web. 22 September 2026. <https://smartdefine.org/alert/thesaurus/synonyms>