say it: ri-nuhn-see-AY-shuhn
renunciation is a noun meaning "rejecting or disowning or disclaiming as invalid". It carries 4 recorded senses.
rejecting or disowning or disclaiming as invalid
“Congressional repudiation of the treaty that the President had negotiated”
the state of having rejected your religious beliefs or your political party or a cause (often in favor of opposing beliefs or causes)
an act (spoken or written) declaring that something is surrendered or disowned
the act of renouncing; sacrificing or giving up or surrendering (a possession or right or title or privilege etc.)
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 renunciation 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.