stigma vs mar

stigma and mar both are nouns.

Word	Noun	Adjective	Verb	Adverb
stigma	Yes	No	No	No
mar	Yes	No	Yes	No

As nouns, mar is a hypernym of stigma; that is, mar is a word with a broader meaning than stigma:

stigma: a skin lesion that is a diagnostic sign of some disease
mar: a mark or flaw that spoils the appearance of something (especially on a person's body)

Other hypernyms of stigma include blemish, defect.

stigma (noun)	mar (noun)
a skin lesion that is a diagnostic sign of some disease	a mark or flaw that spoils the appearance of something (especially on a person's body)
an external tracheal aperture in a terrestrial arthropod
a symbol of disgrace or infamy
the apical end of the style where deposited pollen enters the pistil

stigma (verb)	mar (verb)
	destroy or injure severely
	make imperfect