What It Scores
COMBO is a valid word in the tournament list this site uses. Tile values only, before any premium square: 11 in Scrabble and 13 in Words With Friends. The letters break down as C3 O1 M3 B3 O1.
Anagrams of COMBO (1)
Same letters, different order. Any of these plays the same tiles for the same score.
Words Made From The Letters In COMBO
16 shorter words come out of these tiles. On a board that matters more than the long play, because a short word on a premium square often beats a long one on plain squares.
4 letter words (3)
3 letter words (8)
2 letter words (5)
Longer Words Containing COMBO
COMBO appears inside each of these, which is what makes it worth knowing as a hook.
Next: the Word Unscrambler for any letters at all. Full entry and definition at Merriam-Webster.