main sea, ocean

seed / plant, sow / class, kind, variety / (taxonomy) species

a female given name / a surname

an origin, cause / a type, class

counter for number of kinds or types

an origin, cause / a type, class / an interest, appeal

a seed / a kind, type, sort, class, or category / (taxonomy) a species

world / a metaphorical world (how one lives one's life) / society, the times / a realm, a circle, a sphere / (Buddhism) the four inner realms of 須弥山 (Shumisen) / (Buddhism) realm governed by a buddha

oceanography

Kyūjitai form of 海洋学: oceanography