noun main·sail \ˈmān-ˌsāl, ˈmān(t)-səl\

: the largest sail of a sailing ship

Full Definition of MAINSAIL

:  the principal sail on the mainmast — see sail illustration

First Known Use of MAINSAIL

15th century
MAINSAIL Defined for Kids


noun main·sail \ˈmān-ˌsāl, -səl\

Definition of MAINSAIL for Kids

:  the principal sail on the mainmast


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July 04, 2015
stringent Hear it
rigorous, strict, or severe
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