affect noun verb Stress: second syllable 🤍 Save Syllables: af-fect (2) English Definition To have an influence on; to make a difference to. Example Sentence The weather might affect our plans. US IPA /əˈfekt/ 🔊 Listen US UK IPA /əˈfekt/ 🔊 Listen UK Synonyms influence impact alter modify sway Antonyms remain leave alone Share this Word Facebook WhatsApp X Telegram Copy Link