平へい均きん海かい水すい面めんMeaningsNoun1. mean sea levelKanji used平flat均equalize海sea水water面surfaceComposed of平へい均きんaverage; mean; balance; equilibriumNoun海かい水すいseawater; saltwaterNoun面めんface; mask; face guard; striking the head (in kendo); surface (esp. a geometrical surface); page; aspect; facet; side; chamfer; …Noun