formalise vs validate

formalise and validate both are verbs.

Word	Noun	Adjective	Verb	Adverb
formalise	No	No	Yes	No
validate	No	No	Yes	No

As verbs, formalise and validate are synonyms defined as:

Other synonyms of formalise include formalize.

formalise (verb)	validate (verb)
make formal or official	make valid or confirm the validity of
declare or make legally valid	prove valid; show or confirm the validity of something
	give evidence for
	declare or make legally valid