What is the meaning of plow?

noun

• A farm tool having one or more heavy blades to break the soil and cut a furrow prior to sowing.
  • synonyms: plough

verb

• To break and turn over earth especially with a plow.
  • usage: "Farmer Jones plowed his east field last week"; "turn the earth in the Spring"
  • synonyms: plough, turn
• Act on verbally or in some form of artistic expression.
  • usage: "This book deals with incest"; "The course covered all of Western Civilization"; "The new book treats the history of China"
  • synonyms: cover, treat, handle, deal, address
• Move in a way resembling that of a plow cutting into or going through the soil.
  • usage: "The ship plowed through the water"
  • synonyms: plough