である

(1)have the quality of being; (copula, used with an adjective or a predicate noun); "John is rich"; "This is not a good answer"

(2)存在の品質がある

(3)be identical to; be someone or something; "The president of the company is John Smith"; "This is my house"

(4)同じ

(5)誰かまたは何かである

(1)