satire vs sarcasm

satire and sarcasm both are nouns.

Word	Noun	Adjective	Verb	Adverb
satire	Yes	No	No	No
sarcasm	Yes	No	No	No

As nouns, satire and sarcasm are synonyms defined as:

Other synonyms of satire include caustic remark, irony.

satire (noun)	sarcasm (noun)
witty language used to convey insults or scorn	witty language used to convey insults or scorn
a genre of literature and performing arts, in which shortcomings are held up to ridicule, ideally with the intent of shaming others