From Japanese-German FreeDict Dictionary ver. 0.2.0:
[ichi1] [news1] [nf01] 二, 2, 弐, (word containing out-dated kanji) 貳, (word containing out-dated kanji) 貮, [ichi1] [news1] [nf01] に, ふた, ふ, ふう
(numeric)
(ふ and ふう used mainly when counting aloud. 弐, 貳 and 貮 are used in legal documents.)
zwei, zwei, 2, zwei (in Dokumenten)