debate vs turn over

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

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

As verbs, turn over is a hypernym of debate; that is, turn over is a word with a broader meaning than debate:

Other hypernyms of debate include consider, debate, deliberate, moot.

As verbs, debate and turn over are synonyms defined as:

Other synonyms of debate include consider, deliberate, moot.

debate (noun)	turn over (noun)
the formal presentation of a stated proposition and the opposition to it (usually followed by a vote)
a discussion in which reasons are advanced for and against some proposition or proposal

debate (verb)	turn over (verb)
argue with one another	think about carefully; weigh
discuss the pros and cons of an issue	turn up, loosen, or remove earth
have an argument about something	turn upside down, or throw so as to reverse
think about carefully; weigh	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