Similitude

Noun

 * 1)  Similarity or resemblance to something else.
 * 2)  A way in which two people or things share similitude.
 * 3)  Someone or something that closely resembles another; a duplicate or twin.
 * 4) A parable or allegory.

Thesaurus
accordance, affinity, agreement, alikeness, allegory, alliance, ally, alter ego, analogon, analogue, analogy, aping, approach, approximation, assimilation, associate, balancing, brother, certified copy, close copy, close match, closeness, cognate, community, companion, comparability, comparative anatomy, comparative degree, comparative grammar, comparative judgment, comparative linguistics, comparative literature, comparative method, compare, comparing, comparison, complement, conformity, confrontation, confrontment, congenator, congener, contrast, contrastiveness, coordinate, copy, copying, correlate, correlation, correlative, correspondence, correspondent, counterfeit, counterpart, dead ringer, distinction, distinctiveness, double, duplicate, ectype, effigy, equivalent, exact likeness, fair copy, faithful copy, fake, fellow, forgery, icon, identity, idol, image, imitation, kindred spirit, like, likeness, likening, living image, living picture, match, matching, mate, metaphor, mimicking, miniature, mirroring, model, near duplicate, nearness, obverse, opposing, opposition, parallel, parallelism, parity, pasticcio, pastiche, pendant, phony, photograph, picture, portrait, proportion, reciprocal, reflection, relation, replica, representation, resemblance, rubbing, sameness, second self, semblance, shadow, similarity, simile, simulacrum, simulation, sister, soul mate, spit and image, spitting image, such, suchlike, tally, the like of, the likes of, trace, tracing, trope of comparison, twin, very image, very picture, weighing