tooth noun Stress: first syllable 🤍 Save Syllables: tooth (1) English Definition Each of a set of hard, bony structures in the jaws of most vertebrates. Example Sentence He brushes his tooth twice a day. US IPA /tuːθ/ 🔊 Listen US UK IPA /tuːθ/ 🔊 Listen UK Synonyms fang tusk denticle Share this Word Facebook WhatsApp X Telegram Copy Link