Synonyms of be on the lookout for

be on the lookout for

phrase

variants or keep a lookout for

as in watch out (for)

to be cautious of or on guard against

After the storm, the police told the public to be on the lookout for downed power lines.

The public should remain vigilant and keep a lookout for any suspicious activity.

Synonyms & Similar Words

• watch out (for)
• guard (against)
• beware (of)
• look out (for)
• watch
• notice
• mind
• ware
• observe
• note
• attend
• heed
• keep one's eyes open (for)
• mark
• see
• perceive
• behold
• discern

Antonyms & Near Antonyms

• ignore
• discount
• miss
• disregard
• overlook

Example Sentences

Recent Examples of be on the lookout for

Police will be on the lookout for drivers who are speeding, distracted, and those failing to stop for pedestrians. — Michelle Richardson, CBS News, 24 Aug. 2026

Watson also warned county residents to be on the lookout for unlicensed contractors. — Caroline Zimmerman, Kansas City Star, 22 Aug. 2026

Think ahead and always be on the lookout for potential gifts. — Emma Ashe, Southern Living, 18 Aug. 2026

To help make sure students stay safe, South Florida police will be on the lookout for traffic violations, especially around schools and school buses. — Amaia Gavica, Miami Herald, 7 Aug. 2026