say it: rap-uh-HAN-uhk
rappahannock is a noun meaning "a river that flows across eastern Virginia into the Tidewater region". It carries one recorded sense.
a river that flows across eastern Virginia into the Tidewater region
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 rappahannock 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.