scum noun verb Stress: first syllable 🤍 Save Syllables: scum (1) English Definition A layer of dirt or froth on the surface of a liquid, or a worthless person. Example Sentence A layer of green scum covered the pond. US IPA /skʌm/ 🔊 Listen US UK IPA /skʌm/ 🔊 Listen UK Synonyms froth film dross refuse Share this Word Facebook WhatsApp X Telegram Copy Link