sectionalism vs localism

sectionalism and localism both are nouns.

Word	Noun	Adjective	Verb	Adverb
sectionalism	Yes	No	No	No
localism	Yes	No	No	No

As nouns, sectionalism and localism are synonyms defined as:

Other synonyms of sectionalism include provincialism.

sectionalism (noun)	localism (noun)
a partiality for some particular place	a partiality for some particular place
	a phrase or pronunciation that is peculiar to a particular locality