(n)double, image, look-alikesomeone who closely resembles a famous person (especially an actor)“he could be Gingrich's double”, “she's the very image of her mother”
(a)doubleused of flowers having more than the usual number of petals in crowded or overlapping arrangements“double chrysanthemums have many rows of petals and are usually spherical or hemispherical”
(s)double, dual, twofold, two-fold, treble, threefold, three-foldhaving more than one decidedly dissimilar aspects or qualities“a double (or dual) role for an actor”, “the office of a clergyman is twofold; public preaching and private influence” (R.W.Emerson), “every episode has its double and treble meaning” (Frederick Harrison)
(s)double, dual, dupleconsisting of or involving two parts or components usually in pairs“an egg with a double yolk”, “a double (binary) star”, “double doors”, “dual controls for pilot and copilot”, “duple (or double) time consists of two (or a multiple of two) beats to a measure”
