telegraph wire vs telephone wire

telegraph wire and telephone wire both are nouns.

Word	Noun	Adjective	Verb	Adverb
telegraph wire	Yes	No	No	No
telephone wire	Yes	No	No	No

As nouns, telegraph wire and telephone wire are synonyms defined as:

telegraph wire and telephone wire: the wire that carries telegraph and telephone signals

Other synonyms of telegraph wire include telegraph line, telephone line.

telegraph wire (noun)	telephone wire (noun)
the wire that carries telegraph and telephone signals	the wire that carries telegraph and telephone signals