tooth Definition

a hard, white thing in your mouth that you use for biting and chewing food.

Using tooth: Examples

Take a moment to familiarize yourself with how "tooth" can be used in various situations through the following examples!

  • Example

    I need to brush my teeth before going to bed.

  • Example

    He lost a tooth playing hockey.

  • Example

    The dentist filled a cavity in her tooth.

tooth Synonyms and Antonyms

Synonyms for tooth

Phrases with tooth

  • old or aging


    He's getting a bit long in the tooth to be playing professional sports.

  • to fight very hard to get what you want


    She fought tooth and nail to get the promotion she deserved.

  • by the skin of one's teeth

    just barely; by a very narrow margin


    He passed the exam by the skin of his teeth.


Summary: tooth in Brief

A 'tooth' [tuːθ] is a hard, white object in the mouth used for biting and chewing food. It can be subject to decay and damage, as in 'He lost a tooth playing hockey.' The phrase 'long in the tooth' describes someone who is aging, while 'fight tooth and nail' means to fight hard for something. 'By the skin of one's teeth' means just barely.

How do native speakers use this expression?