Stood up and watched the floor sway beneath him.

The floor swayed almost imperceptibly as people near him walked.

He reached into his jacket and Alex felt the floor sway beneath him as the man produced a gun.

The floor swayed and I had to grab him until it stopped.

Grace gripped a nearby seat as the floor swayed beneath her.

As they neared the midpoint of the tunnel the floor swayed slightly under their feet.

The floor swayed ever so gently beneath my feet.

Now that she wasn't running for her life, Uhura had time to notice how much the unsupported floor swayed under their weight.

He rolled over, felt the floor sway under him.

The floor beneath him swayed as the shock wave from the bomb reverberated.