competition vs comer

competition and comer both are nouns.

Word	Noun	Adjective	Verb	Adverb
competition	Yes	No	No	No
comer	Yes	No	No	No

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

competition (noun)	comer (noun)
the act of competing as for profit or a prize	someone who arrives (or has arrived)
an occasion on which a winner is selected from among two or more contestants	someone with a promising future
the contestant you hope to defeat
a business relation in which two parties compete to gain customers