doppelganger
— Noun
– English
~ a ghostly double of a living person that haunts its living counterpart
doppelzentner
— Noun
– English
~ a unit of weight equal to 100 kilograms
doppler
— Noun
– English
~ Austrian physicist famous for his discovery of the Doppler effect (1803-1853)
dopy
— Adjective
– English
~ having or revealing stupidity; "ridiculous anserine behavior"; "a dopey answer"; "a dopey kid"; "some fool idea about rewriting authors' books"