ADDAX

Yes. "ADDAX" is in the ENABLE word list, accepted by Words With Friends and most open Scrabble apps. It scores 14 points in Scrabble and 14 points in Words With Friends.

In Scrabble, "ADDAX" is worth 14 points before bonuses. In Words With Friends, it's worth 14 points. Played on a triple-word-score, the Scrabble value becomes 42.

A large African antelope (Addax nasomaculatus), with long horns, that lives in the desert.

No, "ADDAX" has no anagrams in the ENABLE dictionary — it's the only word that can be formed from its exact letters.