Keep your cards close to your chest

Meaning

Remain secretive about your plans.

Usage

Used when discretion is necessary.

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.

Card games where hiding cards gives advantage.

Used since the 19th century in gambling contexts.