Diary vs. Notebook
Difference Between Diary and Notebook
A daily log of experiences, especially those of the writer.They kept separate diaries. His was on paper and her diary was on her computer's hard drive.
A book in which notes or memoranda are written.
A personal organizer or appointment diary.
(obsolete) Lasting for one day.
a book with blank pages for recording notes or memoranda
(intransitive) To keep a diary or journal.
a small compact portable computer
a daily written record of (usually personal) experiences and observations
a personal journal (as a physical object)