turn over vs delve

turn over and delve both are verbs.

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

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

Other synonyms of turn over include cut into, dig.

turn over (verb)	delve (verb)
think about carefully; weigh	turn up, loosen, or remove earth
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