1. plural of tooth; the hard, white structures in the mouth used for biting and chewing food
2. projecting parts that resemble or function like teeth, as on a gear, saw, or comb

Examples

• She brushes her teeth twice a day.
• The dentist examined all of his teeth carefully.
• The baby’s first teeth are starting to come in.
• He gritted his teeth in frustration.
• The saw’s teeth were sharp and evenly spaced.
• The gear’s teeth mesh perfectly with the other wheel.
• She smiled, showing her white teeth.