What It Scores
CAECA is a valid word in the tournament list this site uses. Tile values only, before any premium square: 9 in Scrabble and 11 in Words With Friends. The letters break down as C3 A1 E1 C3 A1.
Words Made From The Letters In CAECA
8 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 (2)
2 letter words (3)
Longer Words Containing CAECA
CAECA 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.