/ rɪˈnaʊns; NAmE / verb [ vn ] ( formal )
1.
to state officially that you are no longer going to keep a title, position, etc.
SYN give up :
to renounce a claim / title / privilege / right
2.
to state publicly that you no longer have a particular belief or that you will no longer behave in a particular way :
to renounce ideals / principles / beliefs, etc.
a joint declaration renouncing the use of violence
3.
to state publicly that you no longer wish to have a connection with sb/sth because you disapprove of them
SYN disown :
He had renounced his former associates.
—see also renunciation
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WORD ORIGIN
late Middle English : from Old French renoncer , from Latin renuntiare protest against, from re- (expressing reversal) + nuntiare announce.