GUNK /ɡʌŋk/ ► audio Scrabble 9 Words With Friends 12 Definition noun any thick, viscous matter. — synonyms: sludge, slime, goo, goop, gook, guck, muck, ooze Examples “I washed all the gunk off the light fixture, and found that it was white, not brown.” See all 5 words you can make from GUNK → 4-letter words Words starting with G Words ending with K ← Unscramble different letters