plow, plough -- (a farm tool having one or more heavy blades to break the soil and cut a furrow prior to sowing)
Overview of verb plough
The verb plough has 2 senses
plow, plough -- (move in a way resembling that of a plow cutting into or going through the soil; "The ship plowed through the water")
plow, plough, 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")