helper

Compared meaning: a person who helps (noun).

比较义项：帮助别人做事的人（名词）。

• assistant

  Assistant is more formal and often names a paid job role (in an office, school, or business) with defined duties, not just casual help.

  assistant 更正式，通常指有明确职责的工作职位（如办公室、学校或公司里的助手），而不只是随手帮忙。

  The manager hired a new assistant to handle her emails and calls.

  经理雇用了一位新助理来处理她的邮件和电话。

• helper 本词

  Helper is informal and general, used for anyone, often a child, family member, or volunteer, who pitches in casually without an official role.

  helper 比较口语化，泛指任何随手帮忙的人（常是孩子、家人或志愿者），并没有正式的职位。

  My little sister is a great helper when we clean the kitchen together.

  我妹妹和我们一起打扫厨房时，是个很棒的小帮手。

Assistant and helper both mean a person who helps with tasks, but differ in formality. Assistant is more formal, often a paid job role with set duties. Helper is informal and general, used for anyone, often a child or family member, who helps casually.

这两个词都可以指“帮忙做事的人”，但正式程度不同：assistant 常指工作场合中有明确职责的助手，语气正式；helper 更口语化，常指日常生活中随手帮忙的人，比如孩子或家人。这里不比较 helper 表示“有益的东西”这一义项。