1. a person who moves stealthily around an area, especially with criminal intent

Examples

• The security camera caught a prowler near the back door.
• Police warned residents about a prowler in the neighborhood.
• She heard footsteps outside and worried it might be a prowler.
• The prowler fled when the porch light came on.
• Neighbors reported seeing a prowler around midnight.
• The dog’s barking scared away the prowler.