AA

Adjective

abbreviation alt-of initialism not-comparable

Japanese Meaning

対空（anti‐aircraft, anti‐air）の略語 / 空対空（air‐to‐air）の略語 / 寰軸（atlantoaxial）の略語

The AA defenses engaged the enemy aircraft as they crossed the border.

対空防御は国境を越えてきた敵機を迎撃した。

Sense（1）

(military, aviation) Initialism of anti-aircraft and anti-air; also a/a, A-A, A/A.

Sense（2）

(military, aviation) Initialism of air-to-air.

Sense（3）

(anatomy, medicine) Initialism of atlantoaxial.

AA joint; AA instability

Sense（4）

(anatomy, medicine) Initialism of arterioarterial.

AA anastomosis

Sense（5）

(linguistics) Initialism of Afro-Asiatic.

Sense（6）

(linguistics) Initialism of Austroasiatic.