radio theater vs dramatic work

radio theater and dramatic work both are nouns.

Word	Noun	Adjective	Verb	Adverb
radio theater	Yes	No	No	No
dramatic work	Yes	No	No	No

As nouns, dramatic work is a hypernym of radio theater; that is, dramatic work is a word with a broader meaning than radio theater:

radio theater: a dramatized, purely acoustic performance, broadcast on radio or published on audio media, such as tape or CD.
dramatic work: a play for performance on the stage or television or in a movie etc.

Other hypernyms of radio theater include dramatic composition.

radio theater (noun)	dramatic work (noun)
a dramatized, purely acoustic performance, broadcast on radio or published on audio media, such as tape or CD.	a play for performance on the stage or television or in a movie etc.