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Definitions

tooth

[tooth] / tuθ /
NOUN
a hard bony structure in the jaws of vertebrates
Synonyms
STRONG
bicuspid cuspid eyetooth fang incisor ivory molar premolar tusk
WEAK
carnassial false tooth
NOUN
a toothlike or tooth-shaped object
Synonyms
STRONG
cog dent denticle peg point projection prong serration stub
WEAK
dentile
NOUN
bony object in mouth
Synonyms
STRONG
bicuspid canine cuspid denticle eyetooth fang grinder incisor ivory molar premolar tusk
WEAK
dentation dentile laniary

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

There are vitrines throughout, filled with fine jewelry, asteroid chunks and a brontosaurus tooth; some of them have drink rails, where a martini can rest beside an artifact that’s hundreds of millions of years old.

From The Wall Street Journal • Apr. 14, 2026

EU leaders will still fight their corners tooth and nail, Magyar included.

From Barron's • Apr. 13, 2026

There are also five different hot sauces for crew members to choose from and six desserts to satisfy their sweet tooth: pudding, cookies, chocolate, cake, candy-coated almonds and cobbler.

From Salon • Apr. 10, 2026

"They are too sweet for me," Alina says, "and I have a sweet tooth."

From BBC • Mar. 27, 2026

I check a yak’s abscessed tooth and hold hands with Bobo, leading him around as I check the rest of the animals.

From "Water for Elephants" by Sara Gruen