This is the 11250th most frequent Russian word.
двойник
"Двойник" means "look-alike" or "double."
The word 'двойник' here refers to a person who looks identical to another, often used in contexts such as identical twins or impersonators.
У него был двойник, которого никто не мог отличить от оригинала.
He had a double who no one could differentiate from the original.
In this context, 'двойник' means a replica or copy of an item, highlighting the resemblance or likeness to the original object.
Этот флакон духов — двойник старинного образца.
This perfume bottle is a duplicate of an antique model.
Here, 'двойник' is used to signify a character in a story who acts as the double or alternate representation of another character, often for dramatic purposes.