sobo祖母grandmotherNotegrandmotherBreakdown of sobo祖そ母ぼsobograndmother祖そ母ぼ is a formal alternative for grandmother. You might encounter this word in written contexts or official documents. In most contexts it's advised to use お婆ばあさん instead, as it sounds more friendly and respectful.Elon.io is an online learning platformWe have hundreds of Japanese lessons and thousands of exercises.Start learning Japanese nowNihon-shiki romanizationwatasi ha tyuugoku kara kimasitaHepburn romanizationwatashi wa chuugoku kara kimashita