jack

See also Jack

Pronunciation

• enPR: jăk, IPA ^(key): /dʒæk/
• SAMPA: /dZ{k/

• Audio (US)

  (file)

Noun

Singular jack

Plural 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.

• 
  Jack for a car (sense 1)
• 
  Electronic jacks (sense 2)
• 
  playing cards jacks (sense 5)

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!