Double

doppel

(designed for two)

doppel

(false, deceitful, or hypocritical)

doppellagig

(folded in two; composed of two layers)

doppelt

(made up of two matching or complementary elements)

doppelt

(twice the quantity)

doppelt

(having two aspects; ambiguous)

gefüllt

(of flowers, having more than the normal number of petals)

kontra

(in music, of an instrument, sounding an octave lower)

zweilagig

(folded in two; composed of two layers)

Doppelgänger

(a person resembling or standing for another)

Doppelte

(twice the number or size etc)

Doppelter

(a drink with double amount of alcohol)

Double

(a person resembling or standing for another)

ballen

(to clench)

doppeln

((transitive) to multiply by two)

doppeln

(to go at twice the normal speed)

doubeln

(to serve two roles)

doubeln

(to act as substitute)

kontrieren

(bridge: to make a call that will double certain scoring points)

sich verdoppeln

((intransitive) to increase by 100%)

sich verzweifachen

((intransitive) to increase by 100%)

verdoppeln

((transitive) to multiply by two)

verdoppeln

(to fold over so as to make two folds)

verzweifachen

((transitive) to multiply by two)