say it: BIG-hawrn
bighorn is a noun meaning "a river that flows from central Wyoming to the Yellowstone River in southern Montana". It carries 2 recorded senses.
a river that flows from central Wyoming to the Yellowstone River in southern Montana
wild sheep of mountainous regions of western North America having massive curled horns
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 bighorn 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.