MICROSECOND Scrabble 18 Words With Friends 22 Scrabble letter values: M3I1C3R1O1S1E1C3O1N1D2 = 18 Definition noun one millionth (10^-6) of a second. Examples “one thousandth of a millisecond” See all 649 words you can make from MICROSECOND → 11-letter words Words starting with M Words ending with D ← Unscramble different letters