kid is one of the 1000 most common headwords.
key - kid - kill

Pronunciation change

Noun change

Singular
kid

Plural
kids

  1. (countable) (informal) A child or young person.
  2. (countable) A young goat.
  3. (countable) A young antelope.
  4. Your kid brother or sister is younger than you.

Verb change

Plain form
kid

Third-person singular
kids

Past tense
kidded

Past participle
kidded

Present participle
kidding

  1. If you kid around, you joke.
    You've got to be kidding. If that is not a joke, you will be in a lot of trouble.