Read the dictionary definition of plough. All definitions for this word.
1. a farm tool having one or more heavy blades to break the soil and cut a furrow prior to sowing
2. a group of seven bright stars in the constellation Ursa Major
3. to break and turn over earth especially with a plow
1. Farmer Jones plowed his east field last week
2. turn the earth in the Spring
4. move in a way resembling that of a plow cutting into or going through the soil
1. The ship plowed through the water