"jacks" in the noun sense

1. jack, doodly-squat, diddly-squat, diddlysquat, diddly-shit, diddlyshit, diddly, diddley, squat, shit

a small worthless amount

"you don't know jack"

2. mariner, seaman, tar, Jack-tar, Jack, old salt, seafarer, gob, sea dog

a man who serves as a sailor

3. laborer, manual laborer, labourer, jack

someone who works with their hands someone engaged in manual labor

4. jackfruit, jak, jack

immense East Indian fruit resembling breadfruit it contains an edible pulp and nutritious seeds that are commonly roasted

5. jack

a small ball at which players aim in lawn bowling

6. jack

an electrical device consisting of a connector socket designed for the insertion of a plug

7. jack, jackstones

game equipment consisting of one of several small six-pointed metal pieces that are picked up while bouncing a ball in the game of jacks

8. jack

small flag indicating a ship's nationality

9. jack, knave

one of four face cards in a deck bearing a picture of a young prince

10. jack

tool for exerting pressure or lifting

11. jack

any of several fast-swimming predacious fishes of tropical to warm temperate seas

12. jack, jackass

male donkey

"jacks" in the verb sense

1. jack, jack up

lift with a special device

"jack up the car so you can change the tire"

2. jacklight, jack

hunt with a jacklight

Source: WordNet® (An amazing lexical database of English)

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