今日きょう中じゅうMeaningsAdverbNoun1. by the end of today; sometime today; during todayKanji used今now日sun中inComposed of今日きょうtoday; this dayNoun中じゅう(all) through (e.g. the night); throughout (e.g. the year); all ... long; within (e.g. the week); in the course of (e.g. today); by the end of; all over; throughout (e.g. the world); all (of a group); the whole (family, school, etc.)Suffix