plough plough /ˈploʊ/

noun

1. A farm tool having one or more heavy blades to break the soil and cut a furrow prior to sowing  ( plough , plow [ N. American] )
   a farm tool having one or more heavy blades to break the soil and cut a furrow prior to sowing
    The farmer used a plough to till the soil before planting his crops
   The farmer used a plough to till the soil before planting his crops
   
   

verb

1. [Canadian, British] (farming) to break and turn over earth especially with a plow  ( plough [Canadian, British] , turn , plow [ N. American] )
   (farming) to break and turn over earth especially with a plow
    Farmer Jones plowed his east field last week
   Farmer Jones plowed his east field last week
    Turn the earth in the Spring
   turn the earth in the Spring
   
2. [Canadian, British] Move in a way resembling that of a plow cutting into or going through the soil  ( plough [Canadian, British] , plow [ N. American] )
   move in a way resembling that of a plow cutting into or going through the soil
    The ship plowed through the water
   The ship plowed through the water
   

 Plough

noun

1. [British] A group of seven bright stars in the constellation Ursa Major  ( Big Dipper [ N. American] , Charles's Wain , Dipper , Plough [British] , Wagon , Wain )
   a group of seven bright stars in the constellation Ursa Major