1
come to naught
表示计划或努力完全失败。
All his efforts came to naught.
他所有的努力都化为乌有。
无；零
先理解核心含义，再看它在真实句子里的用法。
无；零
nothing; zero
All his efforts came to naught.
他所有的努力都化为乌有。
彻底失败
complete failure
微不足道的数量
a quantity of no importance
After months of work, the project came to naught.
经过几个月的工作，这个项目化为乌有。
The number is naught, so we start counting from zero.
这个数字是零，所以我们从零开始计数。
His advice counted for naught in the final decision.
他的建议在最终决定中毫无价值。
表示计划或努力完全失败。
All his efforts came to naught.
他所有的努力都化为乌有。
意为忽视或轻视。
They set my warnings at naught.
他们把我的警告置之不理。
强调一切努力白费。
The long wait was all for naught.
漫长的等待毫无结果。
Not this
The child was naught.
Use this
The child was naughty.
Naught意为'无'或'零'，而naughty意为'淘气的'，两者拼写相似但含义不同。
Not this
I have naught money.
Use this
I have no money.
Naught是名词，不能直接修饰名词；应使用形容词'no'或'zero'。
Focus on the distinctions below. Other candidates are kept compact until a reliable usage note is available.
落空；化为乌有
All our efforts came to naught.
我们所有的努力都化为泡影。
轻视；不理会
He set my advice at naught.
他把我的建议当作耳旁风。
徒劳；白费
All his hard work was for naught.
他所有的辛勤努力都白费了。
使失败；使落空
The attack was brought to naught by the defenders.
进攻被守军挫败。
毫无价值；无关紧要
In this game, luck counts for naught.
在这个游戏中，运气一点都不重要。
毫无价值；一文不值
His promise is worth naught.
他的承诺一文不值。
落空，化为泡影
All our careful planning came to naught.
我们精心策划的一切都落空了。
轻视，完全无视
The company set the safety warnings at naught.
公司完全无视了安全警告。
徒劳，白费
We tried everything, but it was all for naught.
我们试遍了所有办法，但一切都是徒劳。
我们一无所获，一切都已耗尽，欲望达成了却没有满足感。
Lady Macbeth speaks this line in William Shakespeare's tragedy Macbeth (Act 3, Scene 2). After her husband has seized the crown by murder, she reflects that the brutal act brought them nothing of real value and left them empty.
这是威廉·莎士比亚的悲剧《麦克白》第三幕第二场中麦克白夫人的台词。在她的丈夫靠谋杀夺得王位后，她感叹这一残暴行为并没有给他们带来真正有价值的东西，只让他们内心空虚。
Use naught naturally, then get feedback on meaning, tone, grammar, and phrasing.
Revisit a common error or keep this word in your review list.
记住 all for naught（白费）：naught 就是“零/无”，努力全化为乌有。
语域：formal 常见场景：正式书面语、文学或修辞表达 naught 表示“彻底失败”或“微不足道的数量”时通常带有正式或文学色彩，多用于书面语或固定表达中；日常口语中较少单独使用。
常与介词 for 连用，如 come to naught（化为乌有）
Dictionary facts from ECDICT, WIKTIONARY.