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Region: UK | Usage example: The senior engineer rules the roost in the lab.

Rule the roost

Meaning

Be in charge or dominant.

Usage

Used for people whose opinion is decisive.

Origin & History

Origins and dates here are approximate summaries. Many idioms have disputed or unknown origins, and not every date has been checked against a historical dictionary, so treat specific dates and stories as a starting point rather than a citation.

Roost of chickens symbolizing hierarchy.

Used since the 17th century to describe patriarchal authority.