CATACLYSM /ˈkætəˌklɪzm̩/ Scrabble 18 Words With Friends 21 Definition noun a sudden violent change in the earth's surface. — synonyms: catastrophe noun an event resulting in great loss and misfortune. — synonyms: calamity, catastrophe, disaster, tragedy See all 117 words you can make from CATACLYSM → 9-letter words Words starting with C Words ending with M ← Unscramble different letters