say it: kur-aw-bur-AY-shuhn
corroboration is a noun meaning "confirmation that some fact or statement is true through the use of documentary evidence". It carries one recorded sense.
confirmation that some fact or statement is true through the use of documentary evidence
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 corroboration 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.