# king of the castle

idiom

Source: https://englishreference.com/idiom/king-of-the-castle
Updated: 2026-08-10

## Meaning

A person who assumes a position of greater importance, authority, or prominence than others.

## Examples

- He acts like the king of the castle in his new office.
- Since he got the promotion, he treats his coworkers like he is the king of the castle.
- The manager, long accustomed to being the king of the castle, struggled to accept the new leadership structure that limited his absolute authority.

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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.