keep a lookout

verb

To remain vigilant for someone or something.

Similar
keep an eye open
Ask AI about this wordChatGPTClaudePerplexityGoogle AIGrok

Meanings

verbkeep a lookout (third-person singular simple present keeps a lookout, present participle keeping a lookout, simple past and past participle kept a lookout)

present singular third person keeps a lookout · participle present keeping a lookout · participle past kept a lookout · past kept a lookout

  1. To remain vigilant for someone or something.
  2. To remain vigilant for a possibly dangerous situation.

Synonyms & antonyms

Similar
keep an eye open
Also see
keep an eye openkeep cave
Cite this entry
APA

keep a lookout. (n.d.). In WatkinsX Dictionary. Retrieved November 5, 2026, from https://dictionary.watkinsx.com/word/keep%20a%20lookout

MLA

“keep a lookout.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/keep%20a%20lookout. Accessed November 5, 2026.

Chicago

WatkinsX Dictionary, s.v. “keep a lookout,” accessed November 5, 2026, https://dictionary.watkinsx.com/word/keep%20a%20lookout.

Source: keep a lookout on Wiktionary, CC BY-SA 4.0.