noun
Refers to the fighting spirit or motivation of a group, especially in military, sports, or workplace contexts.
連敗でチームの士気が下がっている。
The team's morale is dropping due to the losing streak.
指揮官は兵士の士気を高めるために演説をした。
The commander gave a speech to boost the soldiers' morale.
From Chinese 士氣 (shìqì), literally 'soldier spirit'. The kanji 士 means 'warrior' or 'gentleman', and 気 means 'spirit' or 'energy'.