1) Book 2) Education terminology 3) School bag item 4) Used in teaching penmanship 
[education] A copybook (or copy book) is a book used in education that contains examples and blank space for writing down copies of the examples by imitation. Typical uses include teaching penmanship and arithmetic to students. A page of a copy book typically starts with a copybook heading: a printed example of what should be copied, such a...
[n] - a book containing models of good penmanship
noun a book containing models of good penmanship; used in teaching penmanship
a book containing models, usually of penmanship, for learners to imitate. · a book for or containing copies, as of documents.