bustle

An excited activity; a stir.

A cover to protect and hide the back panel of a computer or other office machine.

A frame worn underneath a woman's skirt, typically only protruding from the rear as opposed to the earlier more circular hoops.

To move busily and energetically with fussiness (often followed by about).

"The commuters bustled about inside the train station."

To teem or abound (usually followed by with); to exhibit an energetic and active abundance (of a thing).

"The train station was bustling with commuters."