prototypes

/P R OW1 T AH0 T AY0 P S/
noun
  1. 1

    An original form or object which is a basis for other forms or objects (particularly manufactured items), or for its generalizations and models.

  2. 2

    An early sample or model built to test a concept or process.

    The prototype had loose wires and rough edges, but it worked.

  3. 3

    A declaration of a function that specifies the name, return type, and parameters, but none of the body or actual code.

  4. 4

    An instance of a category or a concept that combines its most representative attributes.

    A robin is a prototype of a bird; a penguin is not.

  5. 5

    A type of race car, a racing sports car not based on a production car. A 4-wheeled cockpit-seating car built especially for racing on sports car circuits, that does not use the silhouette related to a consumer road car.

Source: https://en.wiktionary.org/wiki/prototype, https://en.wiktionary.org/wiki/prototypes