be as quiet as a mouse

to be very quiet She was as quiet as a mouse. I didn't even know she'd come in.

Name	Pronounced	Usage
Poncio	PON-thyo (Spanish), PON-syo (Latin American Spanish)	Spanish
Tsveta	-	Bulgarian
Matxin	-	Basque
Vered	-	Hebrew
Besarion	-	Georgian
Tierra	-	Various