"ploughing" in the noun sense
1. plowing, ploughing
tilling the land with a plow
"he hired someone to do the plowing for him"
"ploughing" in the verb sense
1. plow, plough
move in a way resembling that of a plow cutting into or going through the soil
"The ship plowed through the water"
2. plow, plough, turn
to break and turn over earth especially with a plow
"Farmer Jones plowed his east field last week"
"turn the earth in the Spring"
Source: WordNet® (An amazing lexical database of English)
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