think twice vs turn over

think twice and turn over both are verbs.

Word	Noun	Adjective	Verb	Adverb
think twice	No	No	Yes	No
turn over	No	No	Yes	No

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

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

think twice (verb)	turn over (verb)
consider and reconsider carefully	think about carefully; weigh
	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