be on the lookout for

idiom
variants: or keep a lookout for

Definition of be on the lookout for

: to watch or search for (something or someone) : be alert to Be on the lookout for flooded roads after heavy rainstorms. The police officer walked through the neighborhood, keeping a (sharp) lookout for any suspicious activity.

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Cite this Entry

“Be on the lookout for.” The Merriam-Webster.com Dictionary, Merriam-Webster Inc., https://www.merriam-webster.com/dictionary/been%20on%20the%20lookout%20for. Accessed 12 December 2019.

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