Real Dictionary

-armed
combining form: -armed is used with adjectives such as ' nuclear' and nouns such as ' missile' to form adjectives that indicate what kind of weapons an army or person has.
combining form: -armed is used with adjectives to indicate what kind of arms someone has.

armed
An armed attack or conflict involves people fighting with guns or carrying weapons.
adjective: Someone who is armed is carrying a weapon, usually a gun.

armed in American English
provided with arms (weapons), armor, etc.
adjective: bearing firearms; having weapons

armed in British English 1
adjective: equipped with or supported by arms, armour, etc

armed in British English 2
adjective: having an arm or arms