MOO /muː/ ► audio Scrabble 5 Words With Friends 6 Scrabble letter values: M3O1O1 = 5 Definition verb make a low noise, characteristic of bovines. — synonyms: low noun the sound made by a cow or bull. Examples “You silly moo! What did you do that for?” See all 3 words you can make from MOO → 3-letter words Words starting with M Words ending with O ← Unscramble different letters