Definition

To remove something that is blocking or preventing movement or progress.

Example

She used a tool to unblock the drain in the kitchen.

Tense Forms

Conversation

I think the sink is clogged again.

Oh no! We should try to unblock it before it gets worse.

Yeah, I have a plunger we can use.

Great! Let’s get it sorted out quickly.

Synonyms & Antonyms

Root Explanation

Unblock → It is formed from "un-" (meaning not or opposite of) and "block" (from Old English "blocc", meaning to obstruct or impede). The word "unblock" means to remove an obstruction or to make something accessible again.

Memory Tip

Think of 'not blocking' something — 'un-' means not, and 'block' means to obstruct. This helps you remember that 'unblock' means to remove an obstruction.

Visually Confused Words