Meaning

• (usually pluralized) Something which has exactly the same properties as something else.

• An identical twin.

Meaning

• Bearing full likeness by having precisely the same set of characteristics; indistinguishable.

• Not different or other; not another or others; not different as regards self; selfsame; numerically identical.

• Of twins, sharing the same genetic code.

• Exactly equivalent.

• Approximating or approaching exact equivalence.