/nɔɪz ||; nɔɪz/noun [C,U] a sound, especially one that is loud or unpleasant 声音；声响；（尤指）噪音，喧闹声: Did you hear a noise downstairs? 你听见楼下的声音没有？Try not to make a noise if you come home late. 如果你回家晚了，不要太吵。What an awful noise! 多么刺耳的声音！Why is the engine making so much noise? 引擎为什么发出这么大的声音？