What does CASW stand for?

Canadian Association of Social Workers - See also ACTS

Cave Swallow - Common English name - Scientific name: Petrochelidon Fulva - American Ornithologists Union four-character bird identification (IBP)

Church Association for Seamen's Work - Later, SCI (EA)

Close Air Support Weapon - Military (MCD)

Company Area Suppression Weapon (FLAA)

Council for the Advancement of Science Writing (EA)

Counter Anti-Submarine Warfare (PDAA)