dry run vs practice session

dry run and practice session both are nouns.

Word	Noun	Adjective	Verb	Adverb
dry run	Yes	No	No	No
practice session	Yes	No	No	No

As nouns, practice session is a hypernym of dry run; that is, practice session is a word with a broader meaning than dry run:

dry run: a practice session in preparation for a public performance (as of a play or speech or concert)
practice session: systematic training by multiple repetitions

Other hypernyms of dry run include drill, exercise, practice, recitation.

dry run (noun)	practice session (noun)
a practice session in preparation for a public performance (as of a play or speech or concert)	systematic training by multiple repetitions