student asking question

What does the prefix "sub-" mean? Can you show me some examples?

teacher

Native speaker’s answer

Rebecca

The prefix "sub-" means below or under. It also can mean lower or inferior to someone else. Ex: The class had a substitute teacher yesterday. => A substitute teacher is a teacher that comes in when the regular teacher has a day off Ex: He is subservient to her. => He is less important than her Ex: The submarine is used in military combat. => A submarine goes underwater, which is why the prefix "-sub" is used here.

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