FIL

Yes. "FIL" is in the ENABLE word list, accepted by Words With Friends and most open Scrabble apps. It scores 6 points in Scrabble and 7 points in Words With Friends.

In Scrabble, "FIL" is worth 6 points before bonuses. In Words With Friends, it's worth 7 points. Played on a triple-word-score, the Scrabble value becomes 18.

A Nordic dairy product, similar to yogurt, but using different bacteria which give a different taste and texture.

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