From Japanese-German FreeDict Dictionary ver. 0.2.0:
[ichi1] 否 /(en)tʃˈaɪniːz(ja)lˈe̞tə/, [ichi1] ひ /çˈi/ (noun (common) (futsuumeishi)) Nein
From Japanese-German FreeDict Dictionary ver. 0.2.0:
[ichi1] [news1] [nf10] 否 /(en)tʃˈaɪniːz(ja)lˈe̞tə/, [ichi1] [news1] [nf10] いいえ /ˈiːe̞/, いいや /ˈiːjä/, [ichi1] いえ /ˈie̞/, [ichi1] いな /ˈinä/, いや /ˈijä/ (interjection (kandoushi))
Note: word usually written using kana alonenein, Nein, (1) (2)