1The spring season; often used in formal contexts such as events or competitions (e.g., spring tournament).
春季休業は三月末から四月初めまでだ。
Spring break is from the end of March to the beginning of April.
春季大会で彼のチームは優勝した。
His team won the spring tournament.
春季は花が咲き始める季節だ。
Spring is the season when flowers begin to bloom.