conical / pyramidal / tapered / pointed

Counting, calculation

降水量: precipitation, rainfall - (the amount of the rain that had fallen)

水素爆弾: a hydrogen bomb

海水着: bathing suit

海水魚: saltwater fish

海水パンツ: swimming trunks

水文学: hydrology

"to distinguish sour and sweet by biting": to be familiar with the ways of the world

(lit. one eye, two legs/feet, three courage, four power) "first, eyes, second, feet, third, courage, fourth, power". The essentials of [kendo] in descending order of importance