This is the 13546th most frequent Russian word.
наука
The Russian word "наука" means "science" in English.
Here, 'наука' is used to denote the general field of scientific inquiry.
Наука изучает мир вокруг нас.
Science studies the world around us.
In this sentence, 'наука' refers specifically to a branch or field of science.
Его любимая наука — астрономия.
His favorite science is astronomy.
Here, 'наука' is used in a metaphorical or broader sense, to mean a systematic field of study.