内ない海かいalso: うちうみないかいCommon word›Freq.FrequencyTop 50,000じ字FuriganaMeanings1nouninland sea; inlet; gulf; bayRefers to a body of water largely surrounded by land, such as the Seto Inland Sea (瀬戸内海). Can also be used for smaller inlets and bays.瀬せ戸