Doppel

noun
  1. A shortened form of 'doppelgänger,' which refers to a non-biologically related look-alike or double of a living person. noun
    I met my doppel at the party, and it was like looking in a mirror.
    People often mistake him for his doppel, who lives in the same town.
  2. In some contexts, 'doppel' can be used informally to refer to a duplicate or copy of something. noun
    The artist created a doppel of the famous painting to study its techniques.
    She accidentally bought a doppel of the book she already owned.