To prowl means to move around quietly and carefully, usually while searching for something or watching for opportunity. The word often describes how predators hunt: a lion prowls through tall grass, staying low and silent as it approaches a herd of zebra. A house cat prowls around the kitchen at dinnertime, padding softly from corner to corner, alert for any chance at food.

People can prowl too. A security guard might prowl the hallways of a museum at night, checking each room.

The word carries a sense of tension and wariness. Someone who prowls moves on the hunt, with purpose and heightened awareness. When you're on the prowl, you're actively searching or watching for something specific. A detective might be on the prowl for clues at a crime scene, examining every detail carefully.

Notice that prowling happens in a particular way: slowly, deliberately, often staying hidden or unnoticed. A person who prowls through a library isn't running or making noise. They're moving carefully, watching and listening, ready to pounce on whatever they're seeking.