pitch shot vs approach shot

pitch shot and approach shot both are nouns.

Word	Noun	Adjective	Verb	Adverb
pitch shot	Yes	No	No	No
approach shot	Yes	No	No	No

As nouns, approach shot is a hypernym of pitch shot; that is, approach shot is a word with a broader meaning than pitch shot:

pitch shot: a high approach shot in golf
approach shot: a relatively short golf shot intended to put the ball onto the putting green

Other hypernyms of pitch shot include approach.

pitch shot (noun)	approach shot (noun)
a high approach shot in golf	a relatively short golf shot intended to put the ball onto the putting green