fillet vs tournedos

fillet and tournedos both are nouns.

Word	Noun	Adjective	Verb	Adverb
fillet	Yes	No	Yes	No
tournedos	Yes	No	No	No

As nouns, tournedos is a hyponym of fillet; that is, tournedos is a word with a more specific, narrower meaning than fillet:

Other hyponyms of fillet include Chateaubriand, filet mignon.

fillet (noun)	tournedos (noun)
a narrow headband or strip of ribbon worn as a headband	thick steak cut from the beef tenderloin
fastener consisting of a narrow strip of welded metal used to join steel members
lace having a square mesh
a bundle of sensory nerve fibers going to the thalamus
a boneless steak cut from the tenderloin of beef
a longitudinal slice or boned side of a fish

fillet (verb)	tournedos (verb)
cut into filets
decorate with a lace of geometric designs