Definitions
1.nounLivestock that is wintered and then sold in the spring; often contrasted with a feeder when the focus is on intended disposition."Will you keep those calves as feeders or only as stockers?"
2.nounA racecar in certain classes of auto racing whose origins are nominally or notionally related to factory-stock autos, such as stock car racing or super-stock drag racing.
3.nounOne who crafts gun stocks
4.nounOne who stocks shelves with inventory
5.nounOne who supplies raw material to a machine