1. One of four face cards in a deck bearing a picture of a young prince
   "He drew the jack of hearts from the deck";
   - knave
    
2. Tool for exerting pressure or lifting
   "He used a jack to lift the car and change the flat tire"
    
3. An electrical device consisting of a connector socket designed for the insertion of a plug
   "He plugged the headphones into the audio jack"
    
4. 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
   "She skilfully scooped up the jacks before catching the ball";
   - jackstones
    
5. A small ball at which players aim in lawn bowling
   "The bowler's ball came to rest just inches from the jack"
    
6. Small flag indicating a ship's nationality
   "The jack flew proudly at the stern of the vessel"
    
7. Any of several fast-swimming predacious fishes of tropical to warm temperate seas
   "A school of jacks circled beneath the boat"
    
8. Male donkey
   "The jack's loud bray echoed across the farm";
   - jackass
    
9. Someone who works with their hands; someone engaged in manual labour
   "The jacks worked tirelessly to complete the construction project";
   - laborer [US], manual laborer [US], labourer [Brit, Cdn], manual labourer [Brit, Cdn]
    
10. [N. Amer, informal] Anything at all
    "you don't know jack";
    - doodly-squat [informal], diddly-squat [informal], diddlysquat [informal], diddly [N. Amer, informal], diddley [N. Amer, informal], squat [N. Amer, informal]
     
11. [informal] Immense East Indian fruit resembling breadfruit; it contains an edible pulp and nutritious seeds that are commonly roasted
    "jack fruit is popular in many Southeast Asian cuisines";
    - jackfruit, jak

1. Raise or lift with a jack or similar device
   "jack up the car so you can change the tire";
   - jack up
    
2. Hunt with a jacklight
   "Poachers jacked deer at night";
   - jacklight [N. Amer]

1. A person who serves as a sailor
   "The old Jack-tar regaled us with tales of his voyages";
   - mariner, seaman, tar, Jack-tar, old salt, seafarer, gob [US, informal], sea dog

Derived forms: jacking, jacks, jacked

Type of: adult male, ass, ball, bozo [N. Amer, informal], bring up, carangid, carangid fish, cat [N. Amer, informal], chappie [Brit, informal], court card, edible fruit, electrical device, elevate, face card, flag, game equipment, geezer [Brit, informal], get up, guy [informal], hombre [N. Amer, informal], hunt, hunt down, lift, man, picture card, raise, run, sailor, small indefinite amount, small indefinite quantity, sod [informal], tool, track down, working person

Part of: Artocarpus heterophyllus, bowls, Carangidae, family Carangidae, jackfruit, jackfruit tree, lawn bowling

Encyclopedia: Jack, Samuel