jack

Someone who works with their hands; someone engaged in manual labor.

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

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

A small ball at which players aim in lawn bowling.

Small flag indicating a ship's nationality.

Tool for exerting pressure or lifting.

Male donkey.

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

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.

A small worthless amount.

“you don't know jack”

A man who serves as a sailor.

One of four face cards in a deck bearing a picture of a young prince.

Hunt with a jacklight.

Lift with a special device.

“jack up the car so you can change the tire”