baseball vs catcher

baseball and catcher both are nouns.

Word	Noun	Adjective	Verb	Adverb
baseball	Yes	No	No	No
catcher	Yes	No	No	No

baseball (noun)	catcher (noun)
a ball game played with a bat and ball between two teams of nine players; teams take turns at bat trying to score runs	the position on a baseball team of the player who is stationed behind home plate and who catches the balls that the pitcher throws
a ball used in playing baseball	(baseball) the person who plays the position of catcher