balloon noun verb Stress: second syllable 🤍 Save Syllables: bal-loon (2) English Definition A flexible bag filled with gas or heated air Example Sentence The child is playing with a red balloon. US IPA /bəˈluːn/ 🔊 Listen US UK IPA /bəˈluːn/ 🔊 Listen UK Synonyms airship blimp aerostat Antonyms shrink deflate decrease Share this Word Facebook WhatsApp X Telegram Copy Link