till -
work land as by ploughing, harrowing, and manuring, in order to make it ready for cultivation; "till the soil"
work on,
process,
work subject to a process or treatment, with the aim of readying for some purpose, improving, or remedying a condition; "process cheese"; "process hair"; "treat the water so it can be drunk"; "treat the lawn with chemicals" ; "treat an oil spill"
husbandry,
farming,
agriculture agriculture considered as an occupation or way of life; "farming is a strenuous life"; "there's no work on the land any more"
plough,
plow,
turn to break and turn over earth especially with a plow; "Farmer Jones plowed his east field last week"; "turn the earth in the Spring"
hoe dig with a hoe; "He is hoeing the flower beds"
Till or glacial till is unsorted glacial sediment. Glacial drift is a general term for the coarsely graded and extremely heterogeneous sediments of glacial origin. Glacial till is that part of glacial drift which was deposited directly by the glacier.
