jack

See also Jack

Pronunciation

• enPR: jăk
• IPA: /dʒæk/
• SAMPA: /dZ{k/
•  Audio (US)^{help, file}

Noun

Singular jack

Plural jacks

• 

  Jack for a car

• 

  Electronic jacks

• 

  playing cards jacks

1. (countable) A jack is a machine for lifting heavy thing. Often a jack is used to lift a car for fixing.
2. (countable) A jack is a plug or connector for electronics.
3. (countable) A jack is a flag used at by ships at sea.
4. (uncountable); (slang) Another word for nothing.
5. (countable) A jack is a playing card with a J on it.

Verb

Plain form jack

Third-person singular jacks

Past tense jacked

Past participle jacked

Present participle jacking

1. (transitive) To use a jack.

   He jacked the car up so that he could replace the brake pads.

2. (transitive) To steal.

   Someone jacked my car last night!