alter verb Stress: first syllable 🤍 Save Syllables: al-ter (2) English Definition To change or modify in character or composition. Example Sentence We may have to alter our plans. US IPA /ˈɑːl.tɚ/ 🔊 Listen US UK IPA /ˈɔːl.tə(r)/ 🔊 Listen UK Synonyms change modify vary transform Antonyms preserve maintain keep Share this Word Facebook WhatsApp X Telegram Copy Link