SIL

SIL may refer to:
 * SIL International, a faith-based linguistic services organization which studies lesser-known languages.
 * Single in-line package, an electronics package for semiconductors.
 * SIL, Surge Impedance Loading of high voltage transmission lines.
 * SIL, Soil Interactions Laboratory at the University of California, Davis


 * SIL code, a three-letter language code developed by SIL International.
 * Svensk Intercontinental Lufttraffik, one of the four Scandinavian airlines merged in 1946/8 to produce the airline Scandinavian Airlines System (SAS).
 * Safety Integrity Level, as defined by IEC 61508.
 * Son-in-law.
 * SIL, Software In the Loop, a test method used in software regression testing.
 * SIL, Squamous Intraepithelial Lesion, intraepithelial neoplasia of sqhamous epithelium or inflammatory lesion which mimics intraepithelial neoplasia in gynecological area (especially in cytology based on Bethesda system).

Sil may refer to:
 * Sil (Doctor Who), a villain from the British science-fiction series Doctor Who.
 * Sil, the alien/human hybrid played by Natasha Henstridge in the film Species
 * Sil (Urban Dance Squad), a member of the Dutch rap-metal band Urban Dance Squad.
 * Sil River, a river in Galicia, Spain.
 * Sil (Xerox Star), a vector drawing program for the Xerox Star computer system.

Sil (or "Sill") can also refer to a flat perpendicular surface extending outward or inward from the bottom of a window. This surface is often used for sitting, or placing objects near the window.

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