lr

Initialism of light rail. [(US, Canada, rail transport) A kind of passenger railway in urban and suburban settings typically characterized by a mixture of tram (or in North America streetcar) and metro features, crossing streets at grade crossings and normally powered by electricity.]

Initialism of light railway. [(rail transport, UK) A railway built at a lower cost, with a lighter track and to a lower standard than a main-line railway.]

(politics) Initialism of legislative referendum.

(weaponry) Initialism of long rifle. [(firearms) An American style of rifle with an unusually long barrel, used in hunting and warfare.]

Initialism of long-range. [Operating, or capable of operating, over a great distance.]

(software compilation, of a parser) Initialism of left to right, rightmost derivation in reverse.