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 act2: active, brisk

synonyms see watchful, intelligent

— alert·ly adverb

— alert·ness noun