Sticker has the following meanings:

• Sticker - an adhesive label or notice, generally printed or illustrated.
  • Sticker art
• Sticker (weed) - the seed of a weed that grows in the plains states that has thorny spikes and sticks itself into hair or skin.
• The parts of a mechanical-action pipe organ that transfer push. Stickers are kept short compared to trackers; otherwise, to avoid bending, they'd have to be thicker and thus more massive, slowing the action.
• Strips of dry wood of the same length that separate boards of drying wood and allow air to pass between them, aiding in the drying process. See wood drying.