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widespread is an adjective meaning "widely circulated or diffused". It carries 2 recorded senses.
distributed over a considerable extent
“far-flung trading operations”
“the West's far-flung mountain ranges”
“widespread nuclear fallout”
Forms marked · are formed by the regular rule rather than recorded in the source data. English keeps a few hundred irregulars and the rest follow the pattern, so the rule is right far more often than not — but it is a rule, and the mark says so.
Definitions, synonyms and semantic relations for widespread come from Princeton University’s WordNet. The pronunciation comes from the CMU Pronouncing Dictionary. Commonness is measured against a corpus of everyday English. Full sources and licences.