Initialism of female sexual arousal disorder.

Initialism of female sexual interest/arousal disorder.

(US, military) Initialism of First Strike Ration.

Initialism of Faculty of Sexual and Reproductive Healthcare.

Initialism of Food Safety and Standards Authority of India.

(retail) Initialism of freestanding display unit.

plural of FSA

(initialism, Russia, politics, espionage, government) The Federal Security Service of the Russian Federation (an intelligence agency of the Russian Federation and one of the main successors of the Soviet Cheka, NKVD, and KGB).

(computing) A *nix file system check to detect damage to, or corruption of, files or filesystem structures.

(computing) The tool, fsck, that performs a fsck.