noun1. a person or thing that spins
3. cricketa. a ball that is bowled with a spinning motion
b. a bowler who specializes in bowling such balls
4. a streamlined fairing that fits over and revolves with the hub of an aircraft propeller
5. a fishing lure with a fin or wing that revolves when drawn through the water
6. an angler's name for the mature adult form (imago) of various flies, esp the mayflies
Compare dun2 (sense 3)