Denshi Jisho — Online Japanese dictionary

おうへん round trip
Noun, Suru verb 
だいへん answer a roll call for another
Noun, Suru verb 
みかえし 1: endpaper; end paper (of a book);
2: facing (extra layer of material used to make a garment);
3: looking back; triumphing over (a rival)
Noun 
銀杏 いちょうがえし ancient Japanese ladies' hairstyle
Irregular okurigana usage, Noun 

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