on the alert en · ADP
Meanings
-
Very attentive, or vigilant
Wild animals have to be constantly on the alert for predators.
Synonyms
on one's guard · on one's toes
Translations (4)
fr sur le qui-vive (very attentive, or vigilant) · sv på alerten (very attentive, or vigilant) · bg нащрек (very attentive, or vigilant) · es sobre aviso (very attentive, or vigilant)