submarine ball vs submarine pitch

submarine ball and submarine pitch both are nouns.

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

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

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

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