refuse vs reject

refuse and reject both are nouns.

Word	Noun	Adjective	Verb	Adverb
refuse	Yes	No	Yes	No
reject	Yes	No	Yes	No

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

Other hyponyms of refuse include disdain, freeze off, pooh-pooh, scorn, spurn, turn down, contract out, regret, repudiate, disobey.

As verbs, refuse and reject are synonyms defined as:

Other synonyms of refuse include decline, pass up, turn down.

As verbs, refuse and reject are synonyms defined as:

Other synonyms of refuse include turn away, turn down.

As verbs, refuse and reject are synonyms defined as:

refuse and reject: resist immunologically the introduction of some foreign tissue or organ

Other synonyms of refuse include resist.

refuse (noun)	reject (noun)
food that is discarded (as from a kitchen)	the person or thing that is rejected or set aside as inferior in quality

refuse (verb)	reject (verb)
show unwillingness towards	not accept something given or offered
not accept as true	dismiss from consideration or a contest
refuse to let have	deem wrong or inappropriate
refuse entrance or membership	reject with contempt
elude, especially in a baffling way	not accept as true
resist immunologically the introduction of some foreign tissue or organ	refuse entrance or membership
	resist immunologically the introduction of some foreign tissue or organ