Notebook, Notes
noun
ノート is a shortened form of notebook, with an extra "o" on the end since you can’t end a word with "t" in Japanese. You can also use this to mean notes, in the context of taking down notes in a class.
そのノートなら、デスクの上だよ。
If it's that notebook you mean, it's on my desk.
レッスン、ちゃんとノートにまとめた？
Did you take good notes on the lesson?
A4サイズのノートがいるんだよね。
I need an A4 size notebook, you know.