帖

What does 帖 mean in English?

1. folding book(n)
2. counter for units of paper and nori (48 pages of Mino paper; 20 pages of hanshi; 10 sheets of nori)(ctr)
3. counter for folding books, folding screens, shields, etc.(ctr)
4. counter for pairs (of curtains)(ctr)
5. counter for tatami mats(ctr)