tube noun verb Stress: first syllable 🤍 Save Syllables: tube (1) English Definition A long, hollow cylinder of metal, plastic, or glass. Example Sentence She squeezed the tube of toothpaste. US IPA /tuːb/ 🔊 Listen US UK IPA /tjuːb/ 🔊 Listen UK Synonyms pipe cylinder hose duct Antonyms solid block Share this Word Facebook WhatsApp X Telegram Copy Link