定義 / Definition
[adjective]
・having a solid, almost unyielding surface or structure.
・strongly felt and unlikely to change.
[adverb]
・in a resolute and determined manner.
[verb]
・make more solid or resilient.
[noun]
・a business concern, especially one involving a partnership of two or more people.
— その他 例文 —
This house stands on firm ground.
この家は堅い地盤の上に立っている