If an animal is on the prowl, it is hunting. If a person is on the prowl, they are hunting for something such as a sexual partner or a business deal. Their fellow travellers are a mix of honeymooners, single girls on the prowl and elderly couples The new administration are on the prowl for ways to reduce spending. be/go on the prowl (for sth/sb) a) if an animal is on the prowl, it is hunting b) if someone is on the prowl, they are moving around different places, looking for an opportunity to do something
If an animal or a person prowls around, they move around quietly, for example when they are hunting. Policemen prowled around the building
the act of prowling (walking about in a stealthy manner) move about in or as if in a predatory manner; "The suspicious stranger prowls the streets of the town"
move about in or as if in a predatory manner; "The suspicious stranger prowls the streets of the town"