1) Alarm tripper 2) Cat burglar 3) Eclipse Comic title 4) Interloper 5) Intruder 6) One up to no good 7) Person who sneaks about 8) Potential second-story man 9) Predatory rover 10) Roller coaster in Missouri 11) Sneak 12) Sneak thief 13) Sneaky sort 14) Stalker 15) Stealthy one 16) Suspicious loiterer 1) Interloper 2) Raider 3) Skulker 4) Sneak 5) Tom 
PROWLER was a mid-1980s experimental robot mobile sentry gun device. The name was an acronym standing for `Programmable Robot Observer With Logical Enemy Response`. The Logical Enemy Response was twin M60 machine guns, and a grenade launcher. PROWLER was `the first outdoor robotic sentry/surveillance system.` PROWLER was a six-wheeled vehicle ...[roller coaster] Prowler is a wooden roller coaster at Worlds of Fun in Kansas City, Missouri. It was built by Great Coasters International and opened May 2, 2009 at an estimated cost of 8 million USD. ==The ride== Prowler is the second wooden roller coaster to be built at Worlds of Fun with the first one being Timber Wolf. The ride reaches...
• (n.) One that prowls.
Prowl'er noun One that prowls. Thomson. 
[n] - someone who prowls or sneaks about
noun someone who prowls or sneaks about; usually with unlawful intentions
a person or animal that prowls. · a person who goes stealthily about with some unlawful intention, as to commit a burglary or theft.