This meaning marks the point in time at which an action, period, or condition ends.
The shop is open till nine.
We waited till the end of the meeting.
As a conjunction, till introduces the event or condition that marks the end of another action.
Wait till the rain stops.
She worked till everyone else had left.
This geological meaning refers to mixed material carried and deposited by moving ice without being sorted by water.
The valley floor is covered with glacial till.
The till contains clay, sand, gravel, and stones.
This agricultural meaning refers to breaking, turning, and preparing the ground for crops.
Farmers till the soil before planting.
The field was tilled in early spring.
