plough

American  

[plou] / plaʊ /

noun

Chiefly British.

1. plow.

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plough ¹ British  

/ plaʊ /

noun

1. an agricultural implement with sharp blades, attached to a horse, tractor, etc, for cutting or turning over the earth

2. any of various similar implements, such as a device for clearing snow

3. a plane with a narrow blade for cutting grooves in wood

4. (in agriculture) ploughed land

5. to begin or undertake a task

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verb

1. to till (the soil) with a plough

2. to make (furrows or grooves) in (something) with or as if with a plough

3. to move (through something) in the manner of a plough

   the ship ploughed the water

4. to work at slowly or perseveringly

5. (intr; foll by into or through) (of a vehicle) to run uncontrollably into something in its path

   the plane ploughed into the cottage roof

6. (tr; foll by in, up, under, etc) to turn over (a growing crop, manure, etc) into the earth with a plough

7. slang (intr) to fail an examination

Plough ² British  

/ plaʊ /

noun

1. Usual US name: the Big Dipper.  Also known as: Charles's Wain.  the group of the seven brightest stars in the constellation Ursa Major

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Other Word Forms

• plougher noun
• unploughed adjective

Etymology

Origin of plough

Old English plōg plough land; related to Old Norse plogr, Old High German pfluoc

Example Sentences

The EU needs to plough more money into its digital and green transitions as well as defence, faced with rising global instability.

From Barron's • Mar. 16, 2026

But, despite the bloodbath of recent weeks, this is no time to lose confidence, he might think; he must plough on with an iron fist.

From BBC • Jan. 16, 2026

Foxconn has seen profits soar as it shifts focus from low-margin iPhone assembly to artificial intelligence servers that are now in huge demand as firms plough hundreds of billions of dollars into the technology.

From Barron's • Nov. 21, 2025

It soon rendered fields impossible to plough, as lines of the goblet-shaped bushes, many of them three feet across, formed impenetrable natural fences in the paths of tractors.

From The Wall Street Journal • Nov. 17, 2025

When I sat down to have my breakfast beside my plough, I heard sudden bangs, as if from gun-fire.

From "Cosmos" by Carl Sagan