SPI

SPI may mean: Organizations:Sisters of Perpetual Indulgence, international non-profit organization raising money for AIDS projects and community organizations, and espousing safer sex (www.thesisters.org)Society for Philosophical InquirySociety of the Plastics Industry, a trade association (www.socplas.org)Software in the Public InterestSoftware Patent Institute, a non-profit organization providing prior art in the field of software technologySveriges Pensionärers Intresseparti, a Swedish political party (SPI-Partiet)State education agency (Office of Superintendent of Public Instruction), American state-level government agencies
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SPi Technologies, Inc. is a leading full-service BPO provider with offices and facilities across North America, Europe, and Asia. Together with ePLDT’s Ventus Group, the company has 11,000 employees delivering on a wide range of call center and knowledge-based outsourcing solutions to diversified markets, including financial services, healthcare, legal and publishing. SPi consistently improves operating efficiency, lowers costs and helps to strengthen the competitive position of more than 150 customers.[1]
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The Serial Peripheral Interface Bus or SPI (often pronounced "es-pē-ī" or "spy") bus is a synchronous serial data link standard named by Motorola that operates in full duplex mode. Devices communicate in master/slave mode where the master device initiates the data frame. Multiple slave devices are allowed with individual slave select (chip select) lines. Sometimes SPI is called a "four wire" serial bus, contrasting with three,  two, and  one wire serial busses.
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n. spinnaker, large triangular sail (Nautical)

1. <company> Software in the Public Interest, Inc..
2.  Serial Peripheral Interface.
(2003-07-13)

Single Point Injection

Airport Name: Abraham Lincoln Capital Airport
Airport Location: Springfield, Illinois, United States
IATA Code: SPI
ICAO Code: KSPI