noun
Used for the degree, quality, or standard reached by something, often in phrases such as 高い水準, 一定の水準, 生活水準, and 教育水準.
この国の教育水準は高い。
The standard of education in this country is high.
生活水
The standard of living is gradually rising.
noun
water level
Literal or technical use referring to the height of a water surface. In everyday Japanese, 水位 is often the more usual word for 'water level'.
専門的な文脈では、川や湖の水面の高さを水準と呼ぶことがある。
In technical contexts, the height of the surface of a river or lake may be called the water level.