telephone line vs wire

telephone line and wire both are nouns.

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

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

Other hypernyms of telephone line include conducting wire.

telephone line (noun)	wire (noun)
a telephone connection	ligament made of metal and used to fasten things or make cages or fences etc
the wire that carries telegraph and telephone signals	a metal conductor that carries electricity over a distance
	a message transmitted by telegraph
	the finishing line on a racetrack

telephone line (verb)	wire (verb)
	equip for use with electricity
	send cables, wires, or telegrams
	fasten with wire
	string on a wire
	provide with electrical circuits