stomach vs epigastric fossa

stomach and epigastric fossa both are nouns.

Word	Noun	Adjective	Verb	Adverb
stomach	Yes	No	Yes	No
epigastric fossa	Yes	No	No	No

stomach (noun)	epigastric fossa (noun)
an enlarged and muscular saclike organ of the alimentary canal; the principal organ of digestion	a slight depression in the midline just below the sternum (where a blow can affect the solar plexus)
the region of the body of a vertebrate between the thorax and the pelvis
an appetite for food
an inclination or liking for things involving conflict or difficulty or unpleasantness

stomach (verb)	epigastric fossa (verb)
put up with something or somebody unpleasant
bear to eat