英 [ˌælɪˈgeɪʃn] 美 [ˌæləˈɡeɪʃn]

n. 主张；断言；指控

用法：allegation是一个名词，常用于正式文体中，表示指控或断言的意思。它可以作为主语、宾语或表语，常与介词of连用。

例句1：The company denied the allegations of fraud made by its former employee.

这家公司否认了其前雇员提出的欺诈指控。

例句2：The politician was arrested on allegations of corruption.

这位家因被指控而被逮捕。

例句3：He made an allegation that his neighbor had stolen his car.

他声称他的邻居偷了他的车。

例句4：The company is facing allegations of discrimination against its employees.

这家公司面临着歧视员工的指控。

例句5：The lawyer presented evidence to support his client's allegation of innocence.

律师提供证据来支持他客户无罪的主张。

同义词及用法：

1. accusation (n.) 指责；指控

用法：accusation通常强调对某人或某事物的谴责或指责，常与介词of连用。

例句：He denied the accusation of stealing money from the company.

2. claim (v./n.) 声称；主张

用法：claim既可以作为动词，表示声称或主张，也可以作为名词，表示要求或索赔。

例句：The company claimed that their product was the best on the market.

3. assertion (n.) 声称；断言

用法：assertion强调对某事物的肯定陈述，常用于正式文体中。

例句：The scientist's assertion that the earth is round was widely accepted.

4. charge (v./n.) 控告；指控

用法：charge既可以作为动词，表示控告或指控，也可以作为名词，表示指控或费用。

例句：He was charged with murder and sentenced to life in prison.

5. allegation (n.) 主张；断言

用法：allegation与其他同义词相比更加正式和客观，常用于法律文件或声明中。

例句：The allegations of corruption against the politician were found to be true.

编辑总结：

allegation是一个常见的正式文体中使用的名词，表示指控或断言的意思。它可以与其他同义词如accusation、claim、assertion和charge等替换使用，但每个词都有其特定的语境和用法。在写作时应根据具体情况选择合适的同义词，并注意使用正确的介词搭配。