WordおoMeaninghonorific prefixPart of speechprefixPronunciationCourseJapaneseLessonThe location particles に and でUsages of o(お)誕たん生じょう日び(o)tanzyoubibirthday(お)風ふ呂ろ(o)hurobath(お)皿さら(o)saraplate, dishおします。