fringe vs hairdo

fringe and hairdo both are nouns.

Word	Noun	Adjective	Verb	Adverb
fringe	Yes	No	Yes	No
hairdo	Yes	No	No	No

As nouns, hairdo is a hypernym of fringe; that is, hairdo is a word with a broader meaning than fringe:

Other hypernyms of fringe include coif, coiffure, hair style, hairstyle.

fringe (noun)	hairdo (noun)
an ornamental border consisting of short lengths of hanging threads or tassels	the arrangement of the hair (especially a woman's hair)
a border of hair that is cut short and hangs across the forehead
a social group holding marginal or extreme views
a part of the city far removed from the center
one of the light or dark bands produced by the interference and diffraction of light
the outside boundary or surface of something

fringe (verb)	hairdo (verb)
decorate with or as if with a surrounding fringe
adorn with a fringe