Widget

noun

1. A placeholder name for an unnamed, unspecified, or hypothetical manufactured good or product.

   "Suppose we have a widget factory that produces 100 units per year..."

2. Portable code that can be easily installed and executed by an end user.
3. A floating device inside a beer can, meant to create foam when opened.
4. A small scraping tool consisting of a blade and a handle, commonly used to remove paint from glass and other smooth surfaces.