cable vs telegram

cable and telegram both are nouns.

Word	Noun	Adjective	Verb	Adverb
cable	Yes	No	Yes	No
telegram	Yes	No	No	No

As nouns, telegram is a hypernym of cable; that is, telegram is a word with a broader meaning than cable:

Other hypernyms of cable include wire.

cable (noun)	telegram (noun)
a very strong thick rope made of twisted hemp or steel wire	a message transmitted by telegraph
a television system that transmits over cables
a conductor for transmitting electrical or optical signals or electric power
a telegram sent abroad
television that is transmitted over cable directly to the receiver
a nautical unit of depth

cable (verb)	telegram (verb)
send cables, wires, or telegrams
fasten with a cable