1. (noun)prey, quarry, target, fair game a person who is the aim of an attack (especially a victim of ridicule or exploitation) by some hostile person or influence "he fell prey to muggers"; "everyone was fair game"; "the target of a manhunt"
2. (noun)prey, quarry animal hunted or caught for food
3. (verb)prey, feed profit from in an exploitatory manner "He feeds on her insecurity"
4. (verb)raven, prey, predate prey on or hunt for "These mammals predate certain eggs"