1. A small book with blank pages for writing notes
She wrote her thoughts in her notebook every morning.
Ela escrevia seus pensamentos no caderno todas as manhãs.
2. A portable personal computer, smaller than a desktop
He carried his notebook to the meeting for taking notes.
Ele levou seu notebook para a reunião para tomar notas.
3. A bound collection of blank or lined pages used in school
The students kept their science notebooks organized.
Os alunos mantinham seus cadernos de ciências organizados.