plough vs turn over

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

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

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

plough (verb)	turn over (verb)
to break and turn over earth especially with a plow	think about carefully; weigh
move in a way resembling that of a plow cutting into or going through the soil	turn up, loosen, or remove earth
	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