The word "prowl" can be used both as a verb and a noun:

As a verb, "prowl" means to move about or wander stealthily in or as if in search of prey. It implies a quiet, careful movement, often with a predatory goal¹.

As a noun, "prowl" refers to an act or instance of prowling¹. It's the action of moving in a stealthy way, typically with a purpose or target in mind.

For example, a sentence using "prowl" as a verb could be: "The cat prowled through the house, searching for the hidden toy." And as a noun: "The detective was on a prowl, looking for clues."

Would you like to know more about its usage or etymology?