Fastball is a noun.
A fastball is a type of pitch thrown by a pitcher.
A no seam fastball will go anywhere. You can't control it.
Fastball - comics - was created in 1985.
Fastball - band - was created in 1994.
A no seam fastball will go anywhere. You can't control it.
The part of speech for this particular word is a noun.
part of speech
The part of speech for "answer" is a noun.
what part of speech is beneath
adverb
The part of speech for "explicit" is an adjective.
The part of speech for "lecturer" is a noun.