1. to remove something that is blocking or obstructing a passage or opening
2. to remove restrictions or barriers that prevent access to something
Usage: computing; telecommunications

Examples

• The plumber came to unblock the kitchen drain.
• I need to unblock this user on social media.
• The medication helped unblock her sinuses.
• The IT department will unblock that website for you.
• He used a plunger to unblock the toilet.
• The administrator can unblock your account.
• Surgery was needed to unblock the artery.