かいろ pocket heater Also a form of 回路 かいろ circuit N1 海路 かいろ sea route N1 開炉 かいろ first lighting of the hearth in a Zen… 薤露 かいろ ephemeral nature of the human world Meanings かいろ · カイロ also 懐炉 noun, usually in kana pocket heater; hand warmer; heater pack In sentences Furigana 彼かれはカイロで体からだを暖あたためた。 He warmed himself with a pocket heater. #114154 その船ふねはカイロ行いきだった。 The ship was bound for Cairo. #208447 メナドとバヤはカイロに引ひっ越こした Mennad and Baya moved to Cairo. #11402346