Representation of something, e.g. sacred, such as the elements of the Eucharist. 2. Familiar object used mnemonically to represent acts, persons, ideas, or anything, e.g. the Cross for Christianity, the means by which a Saint was martyred (attribute)… 3. Something representing what it is, unlike an allegory (a description of a subject under the guise of some other subject of aptly suggestive resemblance: it represents something it itself is not).