telephone pole vs telegraph post

telephone pole and telegraph post both are nouns.

Word	Noun	Adjective	Verb	Adverb
telephone pole	Yes	No	No	No
telegraph post	Yes	No	No	No

As nouns, telephone pole and telegraph post are synonyms defined as:

Other synonyms of telephone pole include telegraph pole.

telephone pole (noun)	telegraph post (noun)
tall pole supporting telephone wires	tall pole supporting telephone wires