Entry 2 senses Webster, 1913 Renunciation /(r?-n?n`s?-?"sh?n [or] -sh?-?"sh?n; 277)/ · Re·nun·ci·a·tion · IPA /rɪnˌʌnsiːˈeɪʃən/ 01 n. The act of renouncing. 1. The act of renouncing. 2. Formal declination to take out letters of administration, or to assume an office, privilege, or right.(Law) Syn. Renouncement; disownment; disavowal; disavowment; disclaimer; rejection; abjuration; recantation; denial; abandonment; relinquishment.