bowling vs no ball

bowling and no ball both are nouns.

Word	Noun	Adjective	Verb	Adverb
bowling	Yes	No	No	No
no ball	Yes	No	No	No

As nouns, no ball is a hyponym of bowling; that is, no ball is a word with a more specific, narrower meaning than bowling:

Other hyponyms of bowling include Chinaman, bosie, bosie ball, googly, wrong 'un.

bowling (noun)	no ball (noun)
a game in which balls are rolled at an object or group of objects with the aim of knocking them over or moving them	unlawfully delivered ball in cricket
the playing of a game of tenpins or duckpins etc
(cricket) the act of delivering a cricket ball to the batsman