Science Fair Project Encyclopedia

Si

Si, si, or SI may stand for:

'SI', the Système International d'Unités (the 'metric' International System of Units)
one of two Spanish words pronounced like "see":
- sí (accented) for "yes" and
- si (unaccented) for "if"
in music, Si, the seventh note of solfege
in chemistry, Si, the chemical symbol for silicon
in Mohican mythology, Si, the lunar deity
Sinhalese language, (ISO 639 alpha-2)
Slovenia (ISO 3166-1 alpha-2 country code, SI)
in UK law, a statutory instrument
Smithsonian Institution
Socialist International
Spokane International Railroad
Sports Illustrated
Sports Interactive
Situationist International
Staten Island, a borough of New York City and an island in the Hudson River
Swedish Institute (Svenska institutet)
Supplemental Instruction
Sexual Intercourse (medical abbreviation, not common usage)
Self-injury or self-harm
SI is the acronym for Swarm Intelligence
In Mathematics si or Si is the Sine integral
the IATA code for Skynet Airlines
The Si is a self-replicating artifact in ADOM

10-26-2009 08:16:03
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