doubled vs two-fold

doubled and two-fold both are adjectives.

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

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

Other synonyms of doubled include double, twofold.

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