any of various devices used to cut, lift, and turn over soil, esp in preparing ground for sowing

ploughed land

(the Plough) a formation of seven stars in the northern sky

to turn, break up, or work (earth or land) with a plough

to use a plough

(often + into) to force a way, esp violently

The car ploughed into a group of spectators

(often + through) to proceed steadily and laboriously; to plod

We had to plough through hundreds of applications

(often + in/into) to invest (money or resources)

The government is ploughing more money into education

to remove snow from (a road) using a snowplough

Brit, dated to fail (an examination), or to fail an examination in (a subject)

I usually ploughed French