turn over vs plough

turn over is not a noun while plough is a noun.

Word	Noun	Adjective	Verb	Adverb
turn over	No	No	Yes	No
plough	Yes	No	Yes	No

turn over (noun)	plough (noun)
	a farm tool having one or more heavy blades to break the soil and cut a furrow prior to sowing

turn over (verb)	plough (verb)
think about carefully; weigh	to break and turn over earth especially with a plow
turn up, loosen, or remove earth	move in a way resembling that of a plow cutting into or going through the soil
turn upside down, or throw so as to reverse
turn from an upright or normal position
cause to overturn from an upright or normal position
move by turning over or rotating
cause to move around a center so as to show another side of
place into the hands or custody of
do business worth a certain amount of money