This is the 443rd most frequent Polish word.
stopnia
"Stopnia" in English means "degree" or "step" (genitive singular or accusative singular form of "stopień").
Here, 'stopni' refers to units of measurement for temperature.
Temperatura dzisiaj wynosi osiem stopni Celsiusza.
The temperature today is eight degrees Celsius.
In this sentence, 'stopień' denotes a degree or level of intensity.
Uzależnienie od kofeiny osiągnęło najwyższy stopień.
The level of caffeine addiction has reached its highest degree.
Here, 'stopnia' indicates the level or rank of educational attainment.