Definition of "IA"
IA
proper noun
(military, uncountable) Initialism of Indian Army.
(India, initialism) Initialism of Indian Airlines.
(military) Initialism of Iraqi Army.
(computing) Initialism of Intel Architecture.
noun
countable and uncountable, plural IAs
(computing) Initialism of information assurance.
(law enforcement) Initialism of internal affairs. (a department responsible for investigating complaints against police officers)
(military) Initialism of individual augmentee.
(linguistic morphology) Initialism of item-and-arrangement.
(grammar) Initialism of internal argument.
(politics) Initialism of international affairs.