He knew the silence from inside the room meant nothing, since sound couldn't carry in a vacuum.

Then I saw the faces of the cast and knew the silence meant something else.

How could he be kept from speaking, now that silence might mean life?

His silence meant that he didn't agree with what was being said.

In my experience, silence usually meant nothing, except for the times when it was ominous.

She told herself the silence could mean other things.

The silence about us meant the girls could expect no help from that quarter.

The ship was alive, and silence would have meant the death of all aboard her.

Perhaps the silence means this disclosure is not taking place?

We're clearly dealing with creatures who would stop at nothing, and I fear what the silence of the research party may mean.