Definition

A door that is built into a floor, ceiling, or roof and can be opened to reveal an opening below or above.

Example

The magician made his assistant disappear through a trapdoor on the stage.

Conversation

Have you ever seen a trapdoor in a house?

No, I haven't! What’s the story behind that?

I read that they were used in old theaters for special effects.

That sounds cool! I’d love to see one in action.

Synonyms & Antonyms

Root Explanation

Trapdoor → It is formed from "trap" (from Middle English *trappe*, meaning a door or opening) and "door" (from Old English *duru*, meaning a movable barrier). The word "trapdoor" refers to a door that is concealed or hidden, often used for secret access.

Memory Tip

Imagine a hidden "door" that acts like a "trap" — this helps you remember that a trapdoor is a concealed opening.

Visually Confused Words