This is the 2598th most frequent Russian word.
сфер
"Сфер" is the genitive plural form of "сфера," meaning "spheres" or "domains."
In this sentence, "сфер" denotes various domains or areas of life within society.
Важность сфер жизни общества невозможно переоценить.
The importance of spheres of societal life cannot be overestimated.
Here, "сфер" highlights different branches or disciplines within science.
Исследование охватывает несколько сфер науки.
The study encompasses several spheres of science.
In this example, "сфер" refers to multiple fields or areas of activity or profession.