backstop vs baseball

backstop and baseball both are nouns.

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

backstop (noun)	baseball (noun)
a precaution in case of an emergency	a ball game played with a bat and ball between two teams of nine players; teams take turns at bat trying to score runs
(baseball) a fence or screen (as behind home plate) to prevent the ball from traveling out of the playing field	a ball used in playing baseball
(baseball) the person who plays the position of catcher

backstop (verb)	baseball (verb)
act as a backstop