turn over vs trowel

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

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

As verbs, trowel is a hyponym of turn over; that is, trowel is a word with a more specific, narrower meaning than turn over:

Other hyponyms of turn over include furrow, groove, rut, root, rootle, rout, spade, shovel, burrow, tunnel.

turn over (noun)	trowel (noun)
	a small hand tool with a handle and flat metal blade; used for scooping or spreading plaster or similar materials

turn over (verb)	trowel (verb)
think about carefully; weigh	use a trowel on; for light garden work or plaster work
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