( BrE ) ( NAmE ar·mory ) / ˈɑːməri; NAmE ˈɑːrm-/ noun ( pl. -ies )
1.
a place where weapons and armour are kept
SYN arsenal
2.
(in the US or Canada) a building which is the headquarters for training people who are not professional soldiers, for example the National Guard
3.
( formal ) the things that sb has available to help them achieve sth :
Doctors have an armoury of drugs available.
4.
all the weapons and military equipment that a country has :
Britain's nuclear armoury
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WORD ORIGIN
Middle 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 .