doppelganger – a biologically unrelated look-alike, or a double, of a living person

(Pronounced dop-uhl-gan-ger)

To remember the definition of the word doppelgänger, use the following mnemonic:

They adopt all the gang member (doppelganger) looks and you can't tell one from another. They are not related but they all look alike.

Examples of doppelganger in a sentence

He claimed the witness must have seen his doppelganger at the crime scene. 

She could see some similarities, but they were hardly doppelgangers.

Being the King's doppelganger opened up a lucrative but dangerous role as the King's body double.