renounce
词根词缀：
announce v. 宣布；发表
an 加强 + nounc 讲，说 + e → 一再讲 → 宣布
announcement n. 通告
announce 宣布；发表 + ment 表结果 → 通告
annunciate v. 宣言；通报
an 加强 + nunci 讲，说 + ate 做，造成，使… → 强调地说 → 宣言
denounce v. 抨击
de 毁 + nounc 讲，说 + e → 说诋毁的话 → 抨击
denunciate v. 抨击
de 毁 + nunci 讲，说 + ate 做，造成，使… → 说诋毁的话 → 抨击
enunciate v. 清楚表达
e 出 + nunci 讲，说 + ate 做，造成，使… → 讲出来 → 清楚表达
pronounce v. 发音；宣告
pro 前 + nounc 讲，说 + e → 在〔人〕前讲话 → 宣告
pronunciation n. 发音
pronounce的名词
renounce v. 否认；抛弃
re 反 + nounc 讲，说 + e → 反过来说 → 否认
数据来源：新东方英语词汇速记大全
相关例句：
He renounced his claim to the French throne.
他正式放弃对法国王位的继承权。
I call on everyone to renounce the use of violence and armed struggle
我呼吁每个人都放弃使用暴力和武装斗争。
President Obama said the Palestinians must renounce violence, and Israel must cease settlement activity.
奥巴马总统说，巴勒斯坦人必须抛弃暴力，而以色列人必须停止兴建定居点的活动。
A voice told me to renounce your sister.
一个声音告诉我放弃你们的姐妹。
I formally renounce my positions in the national leadership of the party, my post as minister, my rank of major, and my Cuban citizenship.
我正式辞去我在党的领导机构中的职务和我的部长职务，放弃我的少校军衔和我的古巴国籍。
Curse me, if my sheep have not both teeth and claws; I renounce being their shepherd.
见鬼，如果我的羊群没有尖牙和利爪，我不会做他们的羊倌。