Meaning of BINDER in English

BINDER

/ ˈbaɪndə(r); NAmE / noun

1.

[ C ] a hard cover for holding sheets of paper, magazines, etc. together :

a ring binder

2.

[ C ] a person or machine that puts covers on books

3.

[ C , U ] a substance that makes things stick or mix together in a solid form

4.

[ C ] a machine that fastens wheat into bunches after it has been cut

Oxford Advanced Learner's English Dictionary.      Оксфордский английский словарь для изучающик язык на продвинутом уровне.