plow

a farm tool having one or more heavy blades to break the soil and cut a furrow prior to sowing

act on verbally or in some form of artistic expression

This book deals with incest

The course covered all of Western Civilization

to break and turn over earth especially with a plow

Farmer Jones plowed his east field last week

turn the earth in the Spring

move in a way resembling that of a plow cutting into or going through the soil

The ship plowed through the water