1
snigger at sb/sth
snigger 是不及物动词，表示“对……窃笑”时用 at。
The students sniggered at the teacher's mistake.
学生们窃笑老师的错误。
窃笑；暗笑
先理解核心含义，再看它在真实句子里的用法。
窃笑；暗笑
a disrespectful laugh
The students sniggered at the teacher's mistake.
学生们窃笑老师的错误。
不尊重的笑
a disrespectful laugh
The students tried not to snigger when the lecturer mispronounced the word.
讲师读错单词时，学生们尽量忍住不窃笑。
He sniggered at his brother's clumsy attempt to dance.
他看到哥哥笨拙地跳舞，暗自窃笑。
Stop sniggering and listen to what I'm saying!
别偷笑了，听我说！
snigger 是不及物动词，表示“对……窃笑”时用 at。
The students sniggered at the teacher's mistake.
学生们窃笑老师的错误。
Stop sniggering about the incident.
别再窃笑这件事了。
名词 snigger 常与 give 搭配，表示“发出一声窃笑”。
He gave a snigger.
他窃笑了一声。
Not this
The students sniggered the teacher's mistake.
Use this
The students sniggered at the teacher's mistake.
snigger 是不及物动词，不能直接跟宾语；要表示“嘲笑/窃笑某人或某事”，须加介词 at。中文“嘲笑”常作及物动词，所以学习者容易直接加宾语。
Not this
I heard snigger from the back of the room.
Use this
I heard a snigger from the back of the room.
作名词时 snigger 是可数名词，单数形式前需加冠词 a/an，此处 a snigger 指“一声窃笑”。中文没有冠词概念，所以容易漏掉。
Focus on the distinctions below. Other candidates are kept compact until a reliable usage note is available.
对某人/某事窃笑；嘲笑
The students sniggered at the new boy's accent.
学生们对新男孩的口音窃笑。
在某人背后窃笑
They sniggered behind her back at her old-fashioned clothes.
他们在她背后对她的老式衣服窃笑。
暗自窃笑
He sniggered to himself when he saw the typo in the report.
他看到报告里的错别字时暗自窃笑。
忍住窃笑
I had to suppress a snigger as the professor walked in with his shirt buttoned wrong.
教授衬衫纽扣扣错走进来时，我不得不忍住窃笑。
发出窃笑
He let out a snigger at the absurd suggestion.
他对这个荒谬的建议发出一声窃笑。
Use snigger naturally, then get feedback on meaning, tone, grammar, and phrasing.
Revisit a common error or keep this word in your review list.
把 snigger 想成 snicker（窃笑）和 giggle（咯咯笑）的混合：压低声音、不怀好意地偷笑。
语域：informal 常见场景：背后嘲笑他人时、听到冒犯性笑话时 snigger 多用于非正式场合，常指带着轻蔑或不尊重的低声笑，例如嘲笑别人出错或听到粗俗笑话时。正式写作中不常见。
bigger、digger、trigger 都与 snigger 押韵，并共享拼写块 -igger。注意常见的形近词：singer 读作 /ˈsɪŋə/，带 /ŋ/ 音，不押韵；snicker 读作 /ˈsnɪkə/，仅结尾辅音不同，也不押韵。
Dictionary facts from ECDICT, WIKTIONARY.