discard vs dispose

discard is a noun but dispose is not a noun.

Word	Noun	Adjective	Verb	Adverb
discard	Yes	No	Yes	No
dispose	No	No	Yes	No

As verbs, discard and dispose are synonyms defined as:

discard (noun)	dispose (noun)
getting rid of something that is regarded as useless or undesirable
(cards) the act of throwing out a useless card or of failing to follow suit
anything that is cast aside or discarded

discard (verb)	dispose (verb)
throw or cast away	make fit or prepared
	make receptive or willing towards an action or attitude or belief
	place or put in a particular order
	throw or cast away
	give, sell, or transfer to another