submarine pitch vs submarine ball

submarine pitch and submarine ball both are nouns.

Word	Noun	Adjective	Verb	Adverb
submarine pitch	Yes	No	No	No
submarine ball	Yes	No	No	No

As nouns, submarine pitch and submarine ball are synonyms defined as:

submarine pitch and submarine ball: a pitch thrown sidearm instead of overhead

submarine pitch (noun)	submarine ball (noun)
a pitch thrown sidearm instead of overhead	a pitch thrown sidearm instead of overhead