keep one's mouth shut

Be quiet; don't reveal confidential information. For example, The teachers told us to keep our mouths shut during the entire presentation, or You can't tell Carol anything; she's incapable of keeping her mouth shut. Also see hold one's tongue.

Common Names:

Name	Pronounced	Usage
Nausikaa	-	Greek Mythology
Kalev (2)	-	Biblical Hebrew
Inga	ING-ah (Swedish), ING-gah (German), EEN-gah (Russian)	Swedish, Danish, Norwegian, Icelandic, Latvian, Lithuanian, German, Russian, Ancient Scandinavian, A
Dax	DAKS	English
Frigyes	-	Hungarian
Dickey	['diki]