telex vs teletypewriter

telex and teletypewriter both are nouns.

Word	Noun	Adjective	Verb	Adverb
telex	Yes	No	Yes	No
teletypewriter	Yes	No	No	No

As nouns, telex and teletypewriter are synonyms defined as:

telex and teletypewriter: a character printer connected to a telegraph that operates like a typewriter

Other synonyms of telex include teleprinter, teletype machine, telex machine.

telex (noun)	teletypewriter (noun)
a character printer connected to a telegraph that operates like a typewriter	a character printer connected to a telegraph that operates like a typewriter

telex (verb)	teletypewriter (verb)
communicate by telex