be on the lookout for
idiom
variants
or keep a 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.
Examples of be on the lookout for in a Sentence
Recent Examples on the Web
When this happens, fans should be on the lookout for the @ChipotleTweets account dropping hints on X.
Participants will be challenged to uncover a keyword hidden in the post.
—
Angel Saunders, People.com, 5 June 2025
The Mojave National Preserve also asked people to be on the lookout for desert tortoises, which emerge after rain to hydrate and eat the vegetation.
—Anna Skinner, MSNBC Newsweek, 4 June 2025
The California Highway Patrol will be on the lookout for drunk drivers in the Sacramento area.
—Sarah Linn, Sacbee.com, 16 May 2025
Scientists are urging health care providers in Virginia, Maryland and Delaware to be on the lookout for symptoms of the disease, which is easiest to treat when it’s caught early.
—Sarah Kuta, Smithsonian Magazine, 13 May 2025
See All Example Sentences for be on the lookout for
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Angel Saunders, People.com, 5 June 2025
The Mojave National Preserve also asked people to be on the lookout for desert tortoises, which emerge after rain to hydrate and eat the vegetation.
—Anna Skinner, MSNBC Newsweek, 4 June 2025
The California Highway Patrol will be on the lookout for drunk drivers in the Sacramento area.
—Sarah Linn, Sacbee.com, 16 May 2025
Scientists are urging health care providers in Virginia, Maryland and Delaware to be on the lookout for symptoms of the disease, which is easiest to treat when it’s caught early.
—Sarah Kuta, Smithsonian Magazine, 13 May 2025
See All Example Sentences for be on the lookout for
Cite this Entry
“Be on the lookout for.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/be%20on%20the%20lookout%20for. Accessed 8 Jun. 2025.
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