loosen verb Stress: first syllable 🤍 Save Syllables: loos-en (2) English Definition Make or become less tight or firmly fixed. Example Sentence He loosened his tie to feel more comfortable. US IPA /ˈluːsn/ 🔊 Listen US UK IPA /ˈluːsn/ 🔊 Listen UK Synonyms slacken untie release unfasten relax Antonyms tighten secure fasten Share this Word Facebook WhatsApp X Telegram Copy Link