排はい水すい溝こうTop 25000MeaningsNoun1. drainage; gutter; ditchKanji used排discharge水water溝ditchPitch accentはいすいこうはいすいこうComposed of排はい水すいdrainage; draining; pumping out (water); sewerage; displacementNoun溝こう10^32; hundred nonillionNumeric