the likening of one thing to another on the basis of some similarity between the two; analogy.

any thing or person that is same, similar or equal; an equal.

an optical counterpart or appearance of an object, as is produced by reflection from a mirror, a shining surface, unperturbed water, etc.; an image.

something made by reproducing; copy, close imitation, duplication, etc.; reproduction.

the part of an elephant's head between its tusks (or corresponding part of tuskless elephants).