tell vs repeat

tell is not a noun while repeat is a noun.

Word	Noun	Adjective	Verb	Adverb
tell	No	No	Yes	No
repeat	Yes	No	Yes	No

As verbs, repeat is a hyponym of tell; that is, repeat is a word with a more specific, narrower meaning than tell:

tell (noun)	repeat (noun)
	an event that repeats

tell (verb)	repeat (verb)
discern or comprehend	happen or occur again
mark as different	to say, state, or perform again
let something be known	to say again or imitate
narrate or give a detailed account of	make or do or perform again
give instructions to or direct somebody to do something with authority	repeat an earlier theme of a composition
give evidence	do over
express in words
inform positively and with certainty and confidence