1.  renunciation(n = noun.communication) repudiation - rejecting or disowning or disclaiming as invalid; "Congressional repudiation of the treaty that the President had negotiated"
is a kind of rejection
has particulars: disclaimer, disowning, disownment
Derived form verb renounce₄

2.  renunciation(n = noun.state) apostasy, defection - the state of having rejected your religious beliefs or your political party or a cause (often in favor of opposing beliefs or causes);
is a kind of rejection

3.  renunciation(n = noun.communication) renouncement - an act (spoken or written) declaring that something is surrendered or disowned;
is a kind of resignation
has particulars: relinquishing, relinquishment
Derived forms verb renounce₃, verb renounce₁

4.  renunciation(n = noun.act) forgoing, forswearing - the act of renouncing; sacrificing or giving up or surrendering (a possession or right or title or privilege etc.);
is a kind of rejection
has particulars: forsaking, giving up, abnegation, denial, self-abnegation, self-denial, self-renunciation
Derived form verb renounce₁

1.  The act of renouncing. [1913 Webster]

2.  Formal declination to take out letters of administration, or to assume an office, privilege, or right. [1913 Webster]

renunciation, n.
1 the act or an instance of renouncing or giving up.
2 self-denial.
3 a document expressing renunciation.

Derivative:
renunciant n. & adj. renunciative adj. renunciatory adj.

Etymology:
ME f. OF renonciation or LL renuntiatio (as RENOUNCE)

N  tergiversation, change of mind, change of intention, change of purpose, afterthought, tergiversation, recantation, palinode, palinody, renunciation, abjuration, abjurement, defection, going over, apostasy, retraction, retractation, withdrawal, disavowal, revocation, revokement, reversal, repentance, redintegratio amoris, coquetry, vacillation, backsliding, volte-face, turn coat, turn tippet, rat, apostate, renegade, convert, pervert, proselyte, deserter, backslider, blackleg, crawfish, scab, mugwump, recidivist, time server, time pleaser, timist, Vicar of Bray, trimmer, ambidexter, weathercock, Janus, changeful, irresolute, ductile, slippery as an eel, trimming, ambidextrous, timeserving, coquetting, revocatory, reactionary, a change came o'er the spirit of my dream.

N  relinquishment, abandonment, desertion, defection, secession, withdrawal, cave of Adullam, nolle prosequi, discontinuance, renunciation, abrogation, resignation, desuetude, cession, unpursued, relinquished, relinquishing, Int, avast!, aufgeschoben ist nicht aufgehoben, entbehre gern was du nicht hast, relinquishment, abandonment, renunciation, expropriation, dereliction, cession, surrender, dispensation, quitclaim deed, resignation, riddance, derelict, foundling, jetsam, waif, discards, culls, rejects, garbage, refuse, rubbish, relinquished, cast off, derelict, unowned, unappropriated, unculled, left, Int, away with!, relinquishment, abandonment, desertion, defection, secession, withdrawal, cave of Adullam, nolle prosequi, discontinuance, renunciation, abrogation, resignation, desuetude, cession, unpursued, relinquished, relinquishing, Int, avast!, aufgeschoben ist nicht aufgehoben, entbehre gern was du nicht hast, relinquishment, abandonment, renunciation, expropriation, dereliction, cession, surrender, dispensation, quitclaim deed, resignation, riddance, derelict, foundling, jetsam, waif, discards, culls, rejects, garbage, refuse, rubbish, relinquished, cast off, derelict, unowned, unappropriated, unculled, left, Int, away with!.

N  resignation, retirement, abdication, renunciation, abjuration, abandonment, relinquishment, abdicant, Othello's occupation's gone.

N  exemption, absence, exception, immunity, privilege, release, exempt from, devoid of, without, unpossessed of, unblest with, immune from, not having, unpossessed, untenanted, without an owner, unobtained, unacquired, exemption, freedom, irresponsibility, immunity, liberty, license, release, exoneration, excuse, dispensation, absolution, franchise, renunciation, discharge, exculpation, exempt, free, immune, at liberty, scot-free, released, unbound, unencumbered, irresponsible, unaccountable, not answerable, excusable, bonis nocet quisquis pepercerit malis.