This is the 1942nd most frequent French word.
régionales
"Régionales" means "regional" or "relating to a region(s)."
In this sentence, 'régionales' is an adjective describing 'élections', indicating that these elections pertain to the regions.
Les élections régionales auront lieu le mois prochain.
The regional elections will take place next month.
Here, 'régionales' functions as an adjective describing 'produits', specifying that the products are associated with particular regions.
Elle travaille pour une entreprise spécialisée dans les produits régionaux.
She works for a company specialized in regional products.
In this context, 'régionales' is used as an adjective describing 'différences', emphasizing variations specific to different regions.