plough in
B2 neutral separable transitive
In simple words
To mix something into the ground with a plough, or to put a lot of money into something.
Literal meaning: To use a plough to turn material inward into the earth.
Meanings
1 B2 neutral
(Agriculture) To turn organic material or a crop into the soil using a plough.
"After the harvest, the farmer ploughed the straw in to improve the soil."
Grammar: separable
2 B2
idiomatic
neutral
To invest a large amount of money into a project or venture.
"They've ploughed millions in, but the startup still hasn't turned a profit."
Grammar: separable
Usage notes
Used literally in agriculture ('plough in the crop residue') and metaphorically in finance ('plough money in'). Chiefly British English.
Commonly used with
compost money fertilizer crops funds manure
Forms
Base
plough in
I/you/we/they
3rd person
ploughs in
he/she/it
Past simple
ploughed in
yesterday
Past participle
ploughed in
have + pp
-ing form
ploughing in
continuous
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