A cash register or drawer for money in a store, bank, or restaurant. The cashier opened the till to give the customer their change.
The place in a store, especially a large store, where you pay for your goods. The company is analysing waiting times at checkouts to calculate how many tills should be open.
A layer of unsorted glacial sediment deposited directly by a glacier. The geologist studied the till to understand the movement of ancient glaciers.