lessen verb Stress: first syllable 🤍 Save Syllables: les-sen (2) English Definition Make or become less; diminish. Example Sentence This medicine will help to lessen your pain. US IPA /ˈlɛsn/ 🔊 Listen US UK IPA /ˈlɛsn/ 🔊 Listen UK Synonyms reduce decrease diminish dwindle abate Antonyms increase intensify augment Share this Word Facebook WhatsApp X Telegram Copy Link