rooftop noun Stress: first syllable 🤍 Save Syllables: roof-top (2) English Definition The outer surface of a building's roof. Example Sentence We watched the sunset from the rooftop. US IPA /ˈruːf.tɑːp/ 🔊 Listen US UK IPA /ˈruːf.tɒp/ 🔊 Listen UK Synonyms roof terrace housetop summit Antonyms basement cellar floor Share this Word Facebook WhatsApp X Telegram Copy Link