COOS /kuːz/ Scrabble 6 Words With Friends 7 Scrabble letter values: C3O1O1S1 = 6 Definition COOS is the plural of COO. noun COO: the sound made by a pigeon. See all 5 words you can make from COOS → 4-letter words Words starting with C Words ending with S ← Unscramble different letters