unblock vs unfreeze

unblock and unfreeze both are verbs.

Word	Noun	Adjective	Verb	Adverb
unblock	No	No	Yes	No
unfreeze	No	No	Yes	No

As verbs, unblock and unfreeze are synonyms defined as:

Other synonyms of unblock include free, release.

unblock (verb)	unfreeze (verb)
make (assets) available	become or cause to become soft or liquid
play the cards of (a suit) so that the last trick on which a hand can follow suit will be taken by a higher card in the hand of a partner who has the remaining cards of a combined holding	make (assets) available
clear or remove an obstruction from