fringe vs periphery

fringe and periphery both are nouns.

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

As nouns, fringe and periphery are synonyms defined as:

Other synonyms of fringe include outer boundary.

fringe (noun)	periphery (noun)
an ornamental border consisting of short lengths of hanging threads or tassels	the outside boundary or surface of something
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)	periphery (verb)
decorate with or as if with a surrounding fringe
adorn with a fringe