Definition from Wiktionary, the free dictionary
See also: Appendix:Variations of "ia"
- Initialism of immediate action. This is the procedure to determine the cause of a rifle stoppage
- Initialism of Institute of Arts.
- (computing) Initialism of information assurance.
- (law enforcement) Initialism of internal affairs. This is a department responsible for investigating complaints against police officers.
IA f (uncountable)