Play word 夷 夷 えびす peoples formerly of northern Japan with distinct language and culture (i.e. the Ainu)
Play word 亥の子 亥の子 いのこ day of the Boar in the month of the Boar (the 10th month in the lunar calendar)
Play word 一子相伝 一子相伝 いっしそうでん transmission of the secrets of an art, craft, trade or learning from father to only one child
Play word 一富士二鷹三茄子 一富士二鷹三茄子 いちふじにたかさんなすび best is Fuji, second is a hawk, third is an eggplant (of auspicious things to see in a dream, esp. one's first dream of the year)