Teeth are hard parts inside your mouth. You use them to bite and chew food. It is important to keep them clean.
I brush my teeth every morning.
The dentist checked her teeth today.
Teeth also describe small, sharp parts on tools or machines. These parts help the tool to grip or cut things.
The gear has many small teeth.
The saw's teeth cut the wood well.
Here, 'teeth' means showing strong or tough behaviour. People say this when someone is ready to fight or argue strongly.
The team showed its teeth in the game.
She showed her teeth during the debate.
Teeth are small parts on things like combs or belts. These parts help grab or hold other parts tightly.
The belt has teeth that fit the wheel.
The comb's teeth separate the hair.
In locks, teeth are the small parts that catch or hold the key inside. They help keep the lock closed.
The lock's teeth hold the key firmly.
Broken teeth make the lock open easily.
'To show one's teeth' is an expression meaning to look angry or ready to fight. This is like when animals show their teeth to warn others.
He showed his teeth when angry.
The dog showed its teeth and growled.
This is the plural form of 'tooth.' People usually have many teeth in their mouth to help eat food. Baby teeth fall out and are replaced by adult teeth.
Humans have 32 teeth as adults.
Baby teeth fall out for new teeth.
