jacks (Noun) — A game in which jackstones are thrown and picked up in various groups between bounces of a small rubber ball.
jacks (Noun) — A small worthless amount. ex. "you don't know jack"
jacks (Noun) — Someone who works with their hands; someone engaged in manual labour.
jacks (Noun) — Immense East Indian fruit resembling breadfruit; it contains an edible pulp and nutritious seeds that are commonly roasted.
jacks (Noun) — A small ball at which players aim in lawn bowling.
jacks (Noun) — An electrical device consisting of a connector socket designed for the insertion of a plug.
jacks (Noun) — 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.
jacks (Noun) — Small flag indicating a ship's nationality.
jacks (Noun) — One of four face cards in a deck bearing a picture of a young prince.
jacks (Noun) — Tool for exerting pressure or lifting.
jacks (Noun) — Any of several fast-swimming predacious fishes of tropical to warm temperate seas.
jacks (Noun) — Male donkey.
jacks (Verb) — Lift with a special device. ex. "jack up the car so you can change the tire"
jacks (Verb) — Hunt with a jacklight.