say it: in-VEN-shuhn
invention is a noun meaning "the creation of something in the mind". It carries 3 recorded senses.
the creation of something in the mind
a creation (a new device or process) resulting from study and experimentation
the act of inventing
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 invention 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.