fly ball vs striking

fly ball and striking both are nouns.

Word	Noun	Adjective	Verb	Adverb
fly ball	Yes	No	No	No
striking	Yes	Yes	No	No

As nouns, striking is a hypernym of fly ball; that is, striking is a word with a broader meaning than fly ball:

Other hypernyms of fly ball include hit, hitting.

fly ball (noun)	striking (noun)
(baseball) a hit that flies up in the air	the act of contacting one thing with another
	the physical coming together of two or more things

fly ball (adjective)	striking (adjective)
	having a quality that thrusts itself into attention
	sensational in appearance or thrilling in effect