threefold vs two-fold

threefold and two-fold both are adjectives.

Word	Noun	Adjective	Verb	Adverb
threefold	No	Yes	No	Yes
two-fold	No	Yes	No	No

As adjectives, threefold and two-fold are synonyms defined as:

threefold and two-fold: having more than one decidedly dissimilar aspects or qualities

Other synonyms of threefold include double, dual, three-fold, treble, twofold.

threefold (adjective)	two-fold (adjective)
three times as great or many	twice as great or many
having more than one decidedly dissimilar aspects or qualities	having more than one decidedly dissimilar aspects or qualities

threefold (adverb)	two-fold (adverb)
by a factor of three