say it: JEE-nyuhs
genius is a noun meaning "someone who has exceptional intellectual ability and originality". It carries 5 recorded senses.
someone who has exceptional intellectual ability and originality
“Mozart was a child genius”
“he's smart but he's no Einstein”
unusual mental ability
exceptional creative ability
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 genius 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.