Meaningdecameron · season (for specific products) · ten-day periodOn'yomiシュン · ジュンCommon compounds (6)下旬 げじゅんlast third of a month; 21st to the last day of a month中旬 ちゅうじゅんmiddle of a month; second third of a month; 11th to 20th day of a month上旬 じょうじゅんfirst 10 days of month初旬 しょじゅんfirst 10 days of the month旬報 じゅんぽうten-day report旬 しゅんseason (e.g. fruit, fish)