冬日 ふゆび Meanings Noun winter sun; winter sunshine day on which the temperature drops below 0°C; below-freezing day Kanji 冬 winter. Read as ふゆ. 日 day. Read as ひ. Words containing 冬日 真冬日 (まふゆび) day on which the temperature stays below 0°C Jinuma: Japanese Dictionary · Word lists