telephone plug vs male plug

telephone plug and male plug both are nouns.

Word	Noun	Adjective	Verb	Adverb
telephone plug	Yes	No	No	No
male plug	Yes	No	No	No

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

telephone plug: a plug for connecting a telephone
male plug: an electrical device with two or three pins that is inserted in a socket to make an electrical connection

Other hypernyms of telephone plug include plug.

telephone plug (noun)	male plug (noun)
a plug for connecting a telephone	an electrical device with two or three pins that is inserted in a socket to make an electrical connection