ドッペルゲンガー

noun

doppelgänger; double

Refers to a ghostly double or look-alike of a living person, often seen as an omen of bad luck or death. Used in both supernatural and metaphorical contexts.

from German Doppelgänger

• 彼かれは街まちで自じ分ぶんのドッペルゲンガーを見みたと言いっている。

  He says he saw his own doppelgänger in town.

• あの俳はい優ゆうは、まるで私わたしのドッペルゲンガーみたいだ。

  That actor looks just like my double.