2-hitter vs two-hitter

2-hitter and two-hitter both are nouns.

Word	Noun	Adjective	Verb	Adverb
2-hitter	Yes	No	No	No
two-hitter	Yes	No	No	No

As nouns, 2-hitter and two-hitter are synonyms defined as:

2-hitter and two-hitter: a game in which a pitcher allows the opposing team only 2 hits

2-hitter (noun)	two-hitter (noun)
a game in which a pitcher allows the opposing team only 2 hits	a game in which a pitcher allows the opposing team only 2 hits