Yes, fillet is a Scrabble word!

Verb

1. Decorate with a lace of geometric designs

2. Cut into filets

Noun

1. A boneless steak cut from the tenderloin of beef

2. A longitudinal slice or boned side of a fish

3. A bundle of sensory nerve fibers going to the thalamus

4. A narrow headband or strip of ribbon worn as a headband

5. Fastener consisting of a narrow strip of welded metal used to join steel members