widget

noun

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...”

   “Damage inflicted on the rail industry supply chain, from major contractors to widget manufacturers, would have further profound nationwide consequences on an already damaged industry and wrecked economy.”

2. A floating device inside a beer can, meant to create foam when opened.
3. A small scraping tool consisting of a blade and a handle, commonly used to remove paint from glass and other smooth surfaces.
4. (informal)Synonym of tool, implement, device, gadget, part.
5. 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.
6. A small applet that can be placed on the desktop or in a sidebar, etc.

   “This weather widget shows the current temperature.”