The first car made by the Ford Motor Company on an assembly line. Before the Model T, cars were made painstakingly by hand.

A person who poses to display clothing by walking along a narrow stage in front of an audience.

A low-cost, no-frills version of a merchandise item, especially where a larger selection of more lavishly equipped models of the same item exist.

A formal abstraction of a real-life system that omits less essential aspects of the system in order to make it amenable to scientific analysis.

(idiomatic) Recently designed or fabricated; new.

An exemplary solution to an exercise provided for checking one's own solution against.

(bodybuilding) A good-looking person (usually a man) with a well-developed physique who is paid as a model to demonstrate exercises or related equipment.

An abstract mathematical representation of a process, device or concept; it uses a number of variables to represent inputs, outputs and internal states, and sets of equations and inequalities to describe their interaction.

(genetics) A model of DNA replication that leaves intact the original DNA molecule.

(genetics) A model of DNA replication in which two new DNA molecules are produced containing regions of either both original, or both new, strands.