martyr vs sufferer

martyr and sufferer both are nouns.

Word	Noun	Adjective	Verb	Adverb
martyr	Yes	No	Yes	No
sufferer	Yes	No	No	No

As nouns, martyr and sufferer are synonyms defined as:

martyr (noun)	sufferer (noun)
one who suffers for the sake of principle	a person suffering from an illness
one who voluntarily suffers death as the penalty for refusing to renounce their religion	one who suffers for the sake of principle

martyr (verb)	sufferer (verb)
torture and torment like a martyr
kill as a martyr