冬季|とうきtouki[1]atamadaka (head-high)

1. nounwinter season; winter
   冬季とうきのフロリダの気候きこうはアイオワより穏和おんわだ。↗

   The climate of Florida in the wintertime is milder than that of Iowa.

• Synonym冬ふゆNeutralThe everyday word for winter; 「冬季」 is more written and formal, typical of weather and sports contexts like 「冬季オリンピック」.
• Synonym冬期とうきWrittenRefers to the winter period, used in institutional or business settings such as 「冬期休業」 and 「冬期講習」; 「冬季」 points to the season itself.
• Antonym夏季かきWrittenThe summer season and the opposite of 「冬季」; like 「冬季」, it is mostly a written word.

For everyday talk about winter, use 「冬」. 「冬季」 is the written, formal choice, common in weather and sports contexts like 「冬季オリンピック」. For winter periods set by institutions or businesses, use 「冬期」 (「冬期休業」). The opposite season is 「夏季」.

Usage comparisons are AI-assisted and cross-checked by multiple models; for study reference only

1. 冬ふゆの季節きせつ。天候てんこうが寒さむい期間きかん。
2. 一いち年ねんの中なかの区切くぎりとしての、冬ふゆの季節きせつ。