A second voice or instrument?that is, one whose part is subordinate to or lower than another of the same kind; specifically, a second violin or second soprano; popularly, an alto, Specifically, the hand which marks the seconds on the dial of a watch or a clock, adjective_ Immediately following the first; next to the first in order of place or time; hence, occurring again; another; other, Being of the same kind as another that has preceded; another, like a prototype, the child of a cousin, transitive verb_ To follow or attend for the purpose of assisting; to support; to back; to act as the second of; to assist; to forward; to encourage, rare To follow in the next place; to succeed; to alternate, (Parliamentary Procedure) to support, as a motion{6} or proposal, by adding one's voice to that of the mover or proposer

An original, full-scale, and usually working model of a new product or new version of an existing product, An original object or form which is a basis for other objects, forms, or for its models and generalizations, a standard or typical example, verb_ To create a prototype of, transitive verb_ To make a prototype of (a product)

One who guides or directs a course of action for others, A television program produced as a prototype of a series being considered for adoption by a network, (A?ronautics) One who flies, or is qualified to fly, an airplane, balloon, or other flying machine, transitive verb_ Figuratively_ To guide, as through dangers or difficulties, To direct the course of, as of a ship, where navigation is dangerous, To serve as the pilot of (a plane, for example), adjective_ Serving as a tentative model for future experiment or development, Serving or leading as guide