- LSI
LSI may mean
*
Learning Style Inventory (LSI), an assessment developed byDavid A. Kolb to measure an individual's learning style preference
*Lake Superior and Ishpeming Railroad (AAR reporting mark), a U.S. railroad offering service from Marquette, Michigan, to nearby locations in Michigan's Upper Peninsula
*Landing Ship, Infantry , a type of troopship or post WWII a landing craft used to convey a landing force (infantry and vehicles) from the sea to the shore during an amphibious assault
*Langelier Saturation Index , a measure for the waters tendency to form chemical scale
*Language systems international , an English as a Second Language (ESL) School in California, USA
*Large Scale Integration , electronic integrated circuits with tens of thousands of transistors per chip
*La Salle Institute , an all-male Private, Catholic, college preparatory school operated by the Brothers of the Christian Schools, enrolling young men in grades six through twelve in Troy, New York, USA
*Latent Semantic Indexing , another name for a technique in natural language processing normally called latent semantic analysis
*Logical Sensory Introvert , one of the sixteen Socionics types, a theory of personality and interpersonal interaction
*Long string instrument , a musical instrument invented by the American composer Ellen Fullman
* "LSI (Love Sex Intelligence) ", a single on the album "Boss Drum" by The Shamen
*LSI Corporation , a provider of silicon, systems and software technologies, formerly LSI Logic
*Sumburgh Airport (IATA airport code), the main airport serving Shetland in Scotland
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