ball vs first baseman

ball and first baseman both are nouns.

Word	Noun	Adjective	Verb	Adverb
ball	Yes	No	Yes	No
first baseman	Yes	No	No	No

ball (noun)	first baseman (noun)
a pitch that is not in the strike zone	(baseball) the person who plays first base
a ball game played with a bat and ball between two teams of nine players; teams take turns at bat trying to score runs
round object that is hit or thrown or kicked in games
a spherical object used as a plaything
a solid projectile that is shot by a musket
a more or less rounded anatomical body or mass
one of the two male reproductive glands that produce spermatozoa and secrete androgens
a lavish dance requiring formal attire
a compact mass
an object with a spherical shape

ball (verb)	first baseman (verb)
form into a ball by winding or rolling
to live very well