Free means to release or let go.
To free from a legal charge or imputation of guilt; acquit:
To become open
To remove a control or restriction on (prices or wages, for example).
To set free from confinement or bondage:
(Cricket) To hit with a block.
Find another word for unblock. In this page you can discover 9 synonyms, antonyms, idiomatic expressions, and related words for unblock, like: free, clear, open, unfreeze, release, block, unblocking, unclog and null.