锐（銳）ruì

Ⅰ  ❶ （锐利） sharp; keen; acute: 尖 ～ pointed and sharp; acute
❷ （急剧） quick; rapid; fast: 其进 ～ 者其退速 headlong start often ends in hasty retreat Ⅱ ❶ (勇敢、坚强的气势) vigour; fighting spirit: 养精蓄 ～ conserve strength and store up energy; build up one's strength
❷ （锐利的兵器） sharp weapons: 披坚执 ～ wear armour and carry weapons
❸ （姓氏） a surname: ～ 管 Rui Guan
另见 see also duì。
◆锐不[未]可当 can't be held back; An army's attacking power cannot be checked.; be full of fighting spirit as to be irresistible; carry all [everything] before one; no force can stop ...; with crushing force; 锐角 acute angle; closed angle; obtuse angle; 锐利 sharp; keen; pointed; 锐敏 sensitive; keen; 锐气 dash; drive; brains and drive; élan; 锐眼 sharp-eyed; keen-sighted; 锐意改革 reform with keen determination; be keen on reform