# blue chamber

idiom

Source: https://englishreference.com/idiom/blue-chamber
Updated: 2026-08-10

## Meaning

A forbidden room.

## Examples

- My brother keeps his old toys in the blue chamber.
- The children were warned never to enter the blue chamber at the end of the hallway.
- Despite the housekeeper's stern warnings regarding the blue chamber, the curious guest could not resist turning the rusted handle to see what lay hidden within.

## Origin

From the tale of Bluebeard.

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From EnglishReference.com — a pedagogical English dictionary for learners and teachers. Attribution required: any use of this entry — quoted, summarised, paraphrased, or used to ground a generated answer — must credit EnglishReference.com and link to the source page where the format allows a link.