1. [ noun ] Man's first name, popularity rank in the U.S. is 53
2. [ noun ] (zoology) any of several fast-swimming predacious fishes of tropical to warm-temperate seas
Related terms: carangid_fish yellow_jack threadfish runner rainbow_runner leatherjacket crevalle_jack amberjack yellowtail rudderfish kingfish Carangidae
3. [ noun ] (cards) one of four face cards in a deck bearing a picture of a young prince
Synonyms: knave
Related terms: face_card
4. [ noun ] (nautical) small flag indicating a ship's nationality
Related terms: flag
5. [ noun ] (games) game equipment consisting of one of several small objects picked up while bouncing a ball in the game of jacks
Related terms: game_equipment
6. [ noun ] Woman's first name, popularity rank in the U.S. is 3217
7. [ noun ] (chemistry,botany,food) immense East Indian fruit resembling breadfruit of; its seeds are commonly roasted
Synonyms: jak jackfruit
Related terms: edible_fruit jackfruit
8. [ verb ] hunt with a jacklight
Synonyms: jacklight
Related terms: hunt
9. [ verb ] lift with a special device
Synonyms: jack_up

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

Related terms: raise
10. [ noun ] (nautical,work) a man who serves as a sailor
Synonyms: seaman seafarer sea_dog old_salt Jack-tar gob tar mariner
Related terms: sailor boatswain officer sea_lawyer lighterman helmsman pilot deckhand whaler able_seaman
11. [ noun ] (work) someone who works with their hands; someone engaged in manual labor
Synonyms: laborer labourer manual_laborer
Related terms: workman muleteer hired_hand miner stevedore porter gravedigger hewer digger sprayer hod_carrier dishwasher cleaner lumberman wrecker rail-splitter sawyer section_hand drudge steeplejack yardman stoker woodcutter gandy_dancer day_laborer stacker agricultural_laborer bracero itinerant platelayer labor
12. [ noun ] a small worthless amount
Synonyms: diddly diddly-shit diddly-squat diddlyshit diddlysquat shit squat diddley

"you don't know jack"

Related terms: small_indefinite_quantity
13. [ noun ] (physics) an electrical device consisting of a connector socket designed for the insertion of a plug
Related terms: electrical_device telephone_jack
14. [ noun ] tool for exerting pressure or lifting
Related terms: tool jackscrew bumper_jack
15. [ noun ] Last name, frequency rank in the U.S. is 1852
16. [ noun ] (zoology) male donkey
Synonyms: jackass
Related terms: ass
Similar spelling:   jacks