/ Dictionary / Index L localism: Meaning and Definition of Find definitions for: lo•cal•ism Pronunciation: (lō'ku-liz"um), [key] — n. a word, phrase, pronunciation, or manner of speaking that is peculiar to one locality. a local custom. excessive devotion to and promotion of the interests of a particular locality; sectionalism. attachment to a particular locality. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: localism (Thesaurus) Local Group localite Related Content Daily Word Quiz: arboreal Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language