A scale or full-size model of a design or device which is not fully functional, used for teaching, demonstration, design evaluation, promotion, and other purposes.
A prototype, usually low-fidelity, such as a paper illustration, screenshot, or simple configuration of a screen with limited interaction.
An example serving as the model for such a pattern.
A pattern, a way of doing something, especially (now often derogatory) a pattern of thought, a system of beliefs, a conceptual framework.
A set of all forms which contain a common element, especially the set of all inflectional forms of a word or a particular grammatical category.