widget

noun6

1. •
   A placeholder name for an unnamed, unspecified, or hypothetical manufactured good or product, typically as an example for purposes of explaining concepts.

   • Suppose we have a widget factory that produces 100 units per year...
2. •
   A small applet that can be placed on the desktop or in a sidebar, etc.

   • This weather widget shows the current temperature.
3. •
   Any one of the components of a computer application's graphical user interface, such as a Cancel button or text input box that a user interacts with.
4. •
   A floating device inside a beer can, meant to create foam when opened.
5. •
   A small scraping tool consisting of a blade and a handle, commonly used to remove paint from glass and other smooth surfaces.
6. •
   (informal) Synonym of tool, implement, device, gadget, part.