radiophone vs telephone set

radiophone and telephone set both are nouns.

Word	Noun	Adjective	Verb	Adverb
radiophone	Yes	No	No	No
telephone set	Yes	No	No	No

As nouns, telephone set is a hypernym of radiophone; that is, telephone set is a word with a broader meaning than radiophone:

radiophone: a telephone that communicates by radio waves rather than along cables
telephone set: electronic equipment that converts sound into electrical signals that can be transmitted over distances and then converts received signals back into sounds

Other hypernyms of radiophone include phone, telephone.

radiophone (noun)	telephone set (noun)
a telephone that communicates by radio waves rather than along cables	electronic equipment that converts sound into electrical signals that can be transmitted over distances and then converts received signals back into sounds