What does " collection" mean? I don't know what " collection" means in this context. I found it in money vocabulary collection - The church took a collection to help the poor family.

Ice or stamps I was learning some supermarket vocabulary and i found " ice or stamps" i don't understand what it means plz can anyone explain it to me? I found that meaning but i couldn't understand! While you are putting your food on the counter to check out almost always the cashier will ask you if you need ice or stamps. Stamps are kept in the cashier’s drawer and ice is located right outside the store. Customers can pay for both at the cash register and get them on their way out. “Did you find everything that you need? Do you need ice or stamps?