noun

• Iowa, a state of the United States of America.
• (military, uncountable) Initialism of Indian Army.
• (India, initialism) Initialism of Indian Airlines.
• (military) Initialism of Iraqi Army.
• (computing) Initialism of Intel Architecture.
• Initialism of Ice Age.
• Initialism of immediate action. (the procedure to determine the cause of a rifle stoppage)
• Initialism of Institute of Arts.
• (computing) Initialism of information assurance. [The practice of assuring information and managing risks related to the use, processing, storage, and transmission of information or data and the systems and processes used for those purposes.]
• (law enforcement) Initialism of internal affairs. (a department responsible for investigating complaints against police officers) [(US, law enforcement) A division of a law enforcement agency investigating incidents and plausible suspicions of lawbreaking and professional misconduct attributed to officers on the force.]
• (military) Initialism of individual augmentee.
• (linguistic morphology) Initialism of item-and-arrangement.
• (grammar) Initialism of internal argument.
• (politics) Initialism of international affairs. [Synonym of international relations, commonly abbreviated as IA.]
• Initialism of industrial action. [(chiefly Britain, Ireland) A workplace protest by employees designed to inconvenience or disrupt the business of the employer.]
• Initialism of Impact Assessment.