noun
Definition: A container or drawer used to hold money, especially in a shop or store.
Example: The cashier opened the till to give change to the customer.
preposition
Definition: Up to the point in time or event mentioned.
Example: We will wait here till you arrive.
transitive verb
Definition: To prepare land for growing crops by breaking up the soil and making it ready for planting.
Example: Farmers till the soil in the spring to get it ready for planting seeds.