Translation guide
The Central Intelligence Agency of the United States. In Japanese, it is almost always referred to by its English abbreviation, pronounced in a Japanized way.
Referring to the CIA as an organization
The abbreviation is used directly in Japanese, written in Latin letters or sometimes in katakana as シーアイエー. It is treated as a proper noun.
CIAはアメリカの情報機関です。
The CIA is an American intelligence agency.
彼はCIAのエージェントだ。
He is a CIA agent.
CIA is pronounced as シー・アイ・エー (shī ai ē), with each letter said separately. It is not read as a word like 'see-ah'.
The official Japanese translation of 'Central Intelligence Agency'. Used in formal or explanatory contexts, but less common than the abbreviation.
中央情報局（CIA）は1947年に設立された。
The Central Intelligence Agency (CIA) was established in 1947.