a place where weapons and armour are kept 军械库 Several guns had been stolen from the palace armoury. 有人从王宫军械库盗走了几支枪。 We collected our rifles from the armoury for our first lesson in shooting. 我们从军械库收集了步枪，作为第一堂射击课。
(in the US or Canada) a building that is the headquarters for training people who are not professional soldiers, for example the National Guard （美国或加拿大国民卫队等的）总部大楼 - (formal)
the things that somebody has available to help them achieve something 锦囊；宝库 Extra ExamplesIn karate, strength is not the only weapon in your armoury. 在空手道中，力量不是你武器库中唯一的武器。 The tiger has a formidable armoury of fang, claw, power and speed. 老虎拥有令人生畏的尖牙、利爪、力量和速度。
all the weapons and military equipment that a country has （一国的）军事装备 Britain’s nuclear armoury 英国的核武器装备
Word OriginMiddle English (in the sense ‘armour’): from Old French armoirie, armoierie, from armoier ‘to blazon’, from arme ‘weapon’, from Latin arma. The change in the second syllable in the 17th cent. was due to association with armour.