A note is a short letter.

A note is something that you write down to remind yourself of something.

In a book or article, a note is a short piece of additional information.

A note is a short document that has to be signed by someone and that gives official information about something.

You can refer to a banknote as a note .

In music, a note is the sound of a particular pitch, or a written symbol representing this sound.

You can use note to refer to a particular quality in someone's voice that shows how they are feeling.

You can use note to refer to a particular feeling, impression, or atmosphere.

If you note a fact, you become aware of it.

If you tell someone to note something, you are drawing their attention to it.

If you note something, you mention it in order to draw people's attention to it.

When you note something, you write it down as a record of what has happened.

If you compare notes with someone on a particular subject, you talk to them and find out whether their opinion, information, or experience is the same as yours.

Someone or something that is of note is important, worth mentioning, or well-known.

If someone or something strikes a particular note or sounds a particular note, they create a particular feeling, impression, or atmosphere.

If you take note of something, you pay attention to it because you think that it is important or significant.