Noun

1. An excited activity; a stir.
   • 1748. David Hume. Enquiries concerning the human understanding and concerning the principles of moral. London: Oxford University Press, 1973. § 34.

     we are, perhaps, all the while flattering our natural indolence, which, hating the bustle of the world, and drudgery of business seeks a pretence of reason to give itself a full and uncontrolled indulgence

2. A cover to protect and hide the back panel of a computer or other office machine.
3. A frame worn underneath a woman's skirt.

Verb

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

   The commuters bustled about inside the train station.

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

   The train station was bustling with commuters.

Synonyms