Double

double

(made up of two matching or complementary elements)

double

(twice the quantity)

double

(twice the number or size etc)

double

(a person resembling or standing for another)

double

(a drink with double amount of alcohol)

double

(baseball: a two-base hit)

doublon

(redundant item for which an identical item already exists)

sosie

(a person resembling or standing for another)

doubler

((transitive) to multiply by two)