SONIC Scrabble 7 Words With Friends 9 Definition adjective (of speed) having or caused by speed approximately equal to that of sound in air at sea level. — synonyms: transonic adjective relating to audible sound. Anagrams of SONIC cionscoinsiconsscion See all 28 words you can make from SONIC → 5-letter words Words starting with S Words ending with C ← Unscramble different letters