Translation guide
A weapon designed to shoot at aircraft from the ground. In Japanese, the most common term is 高射砲 (こうしゃほう), but 対空砲 (たいくうほう) is also used. For modern contexts, 対空火器 (たいくうかき) or 対空兵器 (たいくうへいき) may appear.
The standard word for a cannon or large gun used against aircraft.
The most common and traditional term for an anti-aircraft gun. Used in military contexts.
高射砲が敵機を撃墜した。
The anti-aircraft gun shot down the enemy plane.
Literally 'anti-air cannon'. Also common, especially in modern or technical descriptions.
対空砲の射撃訓練が行われた。
Firing practice for anti-aircraft guns was conducted.
When referring to anti-aircraft weapons in general, including machine guns or missiles.
A broader term meaning 'anti-aircraft firearm', covering guns and cannons.
艦船には複数の対空火器が装備されている。
The warship is equipped with multiple anti-aircraft guns.
Means 'anti-aircraft weapon' and can include missiles and guns. Often used in official contexts.
対空兵器の配備が急がれた。
The deployment of anti-aircraft weapons was hastened.
For older or specific anti-aircraft guns, such as those used in WWII.
A term used primarily for naval anti-aircraft guns, especially in the Imperial Japanese Navy. High-angle gun.
戦艦大和には多数の高角砲が搭載されていた。
The battleship Yamato was equipped with many high-angle guns.
Both mean anti-aircraft gun. 高射砲 is the traditional term, while 対空砲 is a more literal translation of 'anti-aircraft gun' and is common in modern contexts. They are largely interchangeable.