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mainsail

[meyn-seyl; Nautical meyn-suh l] /ˈmeɪnˌseɪl; Nautical ˈmeɪn səl/
noun, Nautical
1.
the lowermost sail on a mainmast.
Origin
late Middle English
1425-1475
1425-75; late Middle English; see main1, sail
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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British Dictionary definitions for main sail

mainsail

/ˈmeɪnˌseɪl; nautical ˈmeɪnsəl/
noun
1.
(nautical) the largest and lowermost sail on the mainmast
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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6
8
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