(organic chemistry) Initialism of lysergic acid amide. / Initialism of light sport aircraft. / (computing) Initialism of latent semantic analysis.

(linguistics) Initialism of language for specific purposes. / (physics) Initialism of lightest supersymmetric particle/partner.

(aviation, nautical, military) Initialism of landing signal officer.

Initialism of life-sustaining/saving medical treatment.

(astronomy) Local Supercluster / (England & Wales, historical) Initialism of Legal Services Commission.

Initialism of laminated strand lumber; a type of engineered dimensional lumber beam, composed of laminated wood.

plural of LSL

Abbreviation of Lower Sorbian.

Initialism of London School of Economics. / Initialism of London Stock Exchange.

(slang) The drug dimethyltryptamine.