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
Lyla	LIE-lə	English
Williams	['wijəmz]
ÁKi	-	Ancient Scandinavian, Icelandic
Bloom	[blu:m]
Alexander	a-lig-ZAN-dər (English), ah-lek-SAHN-der (German), ah-lək-SAHN-dər (Dutch), AW-lek-sawn-der (Hungarian)	English, German, Dutch, Swedish, Norwegian, Danish, Icelandic, Hungarian, Slovak, Biblical, Ancient
Guda	-	Arabic