unblock /ʌnˈblɒk/verb 4noun 1forms 3 verb4 •To remove or clear a block or obstruction from.We need a plumber to unblock the sink. •To free or make available.It is not just bad news about Dubai that gets blocked from the Internet; […] a whole range of other social networking sites have been blocked, unblocked and reblocked. — 2010 •To enable communication again, via telephone, instant messaging, etc., with (somebody previously blocked). •In whist, to throw away a high card so as not to interrupt one's partner's long suit. noun1 •The removal of a block or blockage.Look for every opportunity to create an entry to the weak hand. Spectacular unblocks are often needed. — 1997 formsunblocked · unblocking · unblocks