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-less, a privative suffix in English •
Lunar Escape Systems, a series of proposed emergency spacecraft for the Apollo Program •
Christian Friedrich Lessing (1809–1862), (author abbreviation Less.) for German botanist •
Less (novel), a 2017 novel by Andrew Sean Greer •
Lateral electrical surface stimulation, a neuromuscular stimulation treatment for idiopathic scoliosis ==See also==