SOI

SOI or soi or variation may refer to:

Technology

• Silicon on insulator, in semiconductor manufacturing
• Signal operating instructions
• Service-oriented infrastructure
• Stages of involvement for safety-critical software and hardware, US FAA

Science

• Southern Oscillation Index
• Sphere of influence (astrodynamics)
• Second-order intercept point, a measure of linearity that quantifies second-order distortion generated by nonlinear systems and devices
• Styrene-oxide isomerase, an enzyme that catalyzes a chemical reaction

Soi

• A soi is a side-street branching off a major street in Thailand.
• Soi (surname), a surname
• Soi language, an Iranian language
• Chua Soi Lek (born 1947), Malaysian politician

Other uses

• Sociosexual Orientation Inventory
• School of Infantry
• Severity of illness
• Solomon Islands, UNDP country code
• Sphere of influence, in politics
• Symphony Orchestra of India
• Stars on Ice, a skating tour
• Statistics of Income of the US Internal Revenue Service
• Shadow of Israphel, a Minecraft series by The Yogscast
• Soi, an error in the Microsoft Sam text to speech voice when saying "soy" or "soi".

See also

• Pou-Soi
• Soy (disambiguation)
• SOJ (disambiguation)
• Soja (disambiguation)
• Soya (disambiguation)
• Soia (disambiguation)