UK:*UK and possibly other pronunciationsUK and possibly other pronunciations/ˈriːdʒənəlɪst/

WordReference Random House Learner's Dictionary of American English © 2020
re•gion•al•ism /ˈridʒənəlˌɪzəm/USA pronunciation   n. 
  1. Linguistics[countable] a word, a way of speaking, an act, or a way of behaving that is special to a particular area or region.
  2. [uncountable] devotion or loyalty to the interests of one's own region.
See -reg-.
WordReference Random House Unabridged Dictionary of American English © 2020
re•gion•al•ism  (rējə nl iz′əm),USA pronunciation n. 
  1. Governmentthe principle or system of dividing a city, state, etc., into separate administrative regions.
  2. Governmentadvocacy of such a principle or system.
  3. Linguisticsa speech form, expression, custom, or other feature peculiar to or characteristic of a particular area.
  4. devotion to the interests of one's own region.
  5. Literaturethe theory or practice of emphasizing the regional characteristics of locale or setting, as by stressing local speech.
  6. Fine Art(often cap.) a style of American painting developed chiefly 1930–40 in which subject matter was derived principally from rural areas.
region•al•ist, n., adj. 
re′gion•al•istic, adj. 
  • regional + -ism 1880–85

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