定義 / Definition
[noun]
・a level of quality or achievement that is considered acceptable
・something used as a measure, norm, or model in comparative evaluations.
・(especially with reference to jazz or blues) a tune or song of established popularity.
[adjective]
・used or accepted as normal or average.
— その他 例文 —
The standard of living in Russia is declining.
ロシアの生活水準は低下しつつある