adj. Bearing full likeness by having precisely the same set of characteristics; indistinguishable.adj. Not different or other; not another or others; not different as regards self; selfsame; numerically identical.adj. Having some particular qualities or characteristics in common, but not all of them.adj. Of twins, sharing the same genetic code.adj. Exactly equivalent.adj. Approximating or approaching exact equivalence.n. Something which has exactly the same properties as something else.