to the full vs fully

to the full and fully both are adverbs.

Word	Noun	Adjective	Verb	Adverb
to the full	No	No	No	Yes
fully	No	No	No	Yes

As adverbs, to the full and fully are synonyms defined as:

to the full and fully: to the greatest degree or extent; completely or entirely; (`full' in this sense is used as a combining form)

Other synonyms of to the full include full.

to the full (adverb)	fully (adverb)
to the greatest degree or extent; completely or entirely; (`full' in this sense is used as a combining form)	to the greatest degree or extent; completely or entirely; (`full' in this sense is used as a combining form)
	referring to a quantity
	sufficiently; more than adequately