辞書/one

one の例文:

I want one book.

one の定義と意味:

Refers to a single person or thing.

one の例文:

I have one dog.

one の定義と意味:

The first whole number after zero.

one の例文:

One should be kind to others.

one の定義と意味:

Refers to a person in a general way.