しゅん〔旬〕 〈名〉Season ◆牡蠣{かき}は今旬だ　Oysters are now in season. ◆鹿肉は旬でないから油がかからない　Venison is not in season, and not in grease. 　

じゅん〔旬〕 〈名〉Ten days; a decade ◆上旬、中旬、下旬　the first decade―the second decade―the third decade ◆一月上旬　early in January ◆二月中旬　about the middle of February ◆三月下旬　toward the end of March 　

じゅんじつ〔旬日〕 〈名〉Ten days; a decade ◆旬日の寿　a transient life―an ephemeral existence