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English definition of “sail”

sail

noun (MATERIAL)    /seɪl/
C2 [C] a sheet of material fixed to a pole on a boat to catch the wind and make the boat move: to hoist/lower the sailsParts of ships and boats [C] On a windmill, a sail is any of the wide blades that are turned by the wind in order to produce power.Generating and pumping devices
(Definition of sail noun (MATERIAL) from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)
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