What is "ioi"

IOI can refer to:

• International Olympiad in Informatics
• Internet Open Index, a free web search index
• Interonset interval
• Indicator of interest, gauge in seduction literature
• Indication of Interest, used in financial trading
• Interest on Investment, a synonym for Return on Investment (ROI)
• IO Interactive
• International Ombudsman Institute
• IOI Group, IOI Corporation, industrial gas manufacturing in Malaysia, property development (Marriott Putrajaya Hotel and Palm Garden Hotel in Putrajaya), oil palm plantations
• Internal Object Identifier, used in ControlNet Messaging (industrial network protocol for industrial automation applications)
• I.O.I, a South Korean girl group
• Innovative Online Industries, the fictional corporation that employs most of the antagonists of Ready Player One by Ernest Cline