keep a watch out for
phrase
: to regularly check to see if someone has arrived or if something has appeared or happened
She asked him to keep a watch out for the delivery truck.
Cite this Entry
“Keep a watch out for.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/keep%20a%20watch%20out%20for. Accessed 11 Mar. 2026.
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