ball vs base runner

ball and base runner both are nouns.

Word	Noun	Adjective	Verb	Adverb
ball	Yes	No	Yes	No
base runner	Yes	No	No	No

ball (noun)	base runner (noun)
a pitch that is not in the strike zone	a baseball player on the team at bat who is on base (or attempting to reach a 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)	base runner (verb)
form into a ball by winding or rolling
to live very well