Main Entry: ¹alert

Pronunciation: \ə-ˈlərt\

Function: adjective

Etymology: Italian all'erta, on the watch, literally, on the height

Date: 1618

1 a : watchful and prompt to meet danger or emergency b : quick to perceive and act
2 : active, brisk

synonyms see watchful, intelligent

— alert·ly adverb

— alert·ness noun