Meaning & Definition of word "Jack"

Jack

/jak/

1. A device for lifting heavy objects, typically a mechanical device with a lever and a lifting arm.
- Example: He used a jack to lift the car so he could change the tire.
2. A playing card worth eleven points in some card games, often depicted as a young man.
- Example: I drew a jack and a queen in my hand.
3. A familiar or common name for a man or boy.
- Example: Jack is coming over later for dinner.
4. A slang term for a man, especially one who is considered lively or good-natured.
- Example: He's a good jack, always up for a laugh.

1. To raise or lift something with a jack.
- Example: We need to jack up the car to access the engine.
2. To increase something, especially in a sudden or significant way.
- Example: They jacked up the prices of concert tickets this year.

Middle English; possibly from the name Jack, a familiar form of John.

jack of all trades:

A person who has many skills but is not specialized in any.

jack it up:

To increase the level or amount of something.

jack in the box:

A child's toy that jumps out of a box when opened.

jackass:

A foolish or annoying person.

jackpot:

The largest prize in a game or lottery.

jackknife:

A folding knife with a blade that can be folded into the handle.

Meaning: To steal something.

Example Sentence: They jacked his bike while he was at the store.

Meaning: To increase or enhance.

Example Sentence: He jacked up the volume on the speakers.