An idiom is a phrase that doesn't make any sense unless you know the definition. This phrase makes perfect sense, so it is not an idiom. The room became quiet.
The room went silent when I strode confidently into a crowd of my detractors.
The LITERAL meaning would be that you grew another eye that was used for measuring. The FIGURATIVE meaning is that you learned how to measure things well.
"To be" is not an idiom - it's a verb.
The idiom "apple shiner" means the teacher's pet.
A genius in residence or resident genius is the smartest person in the room, the one everyone else always takes their questions to first.
In a silent room
Mess
a silent room if it isn't silent i get my ipod and play funky music
When she walked purposefully to the front of the room, and the audience grew immediately quiet?
Yes. But they have to be silent the whole time.
In an instant the lights went out and the room was silent.
Silence is a lack of noise there would be no sound.
68
it grew square roots
Go ahead and so something that will grab the attention of everyone in the room.
Manowar
The room went silent when I strode confidently into a crowd of my detractors.