Definition of National Security Agency in English:
National Security Agency
(also NSA)
proper noun
(in the US) a secret body established after the Second World War to gather intelligence, deal with coded communications from around the world, and safeguard US transmissions.
（美国）国家安全局
Definition of National Security Agency in US English:
National Security Agency
(also NSA)
proper noun
A secret body established in the US after World War II to gather intelligence, deal with coded communications from around the world, and safeguard US transmissions.