rely vs bet

rely is not a noun while bet is a noun.

Word	Noun	Adjective	Verb	Adverb
rely	No	No	Yes	No
bet	Yes	No	Yes	No

As verbs, rely and bet are synonyms defined as:

Other synonyms of rely include bank, calculate, count, depend, look, reckon, swear.

rely (noun)	bet (noun)
	the act of gambling
	the money risked on a gamble

rely (verb)	bet (verb)
have faith or confidence in	have faith or confidence in
	maintain with or as if with a bet
	stake on the outcome of an issue