This is the 12791st most frequent Russian word.
круга
The Russian word "круга" is the genitive singular or accusative plural form of "круг," which means "circle" or "ring."
In this sentence, 'круга' refers to a physical circle formed by people or objects, highlighting spatial context.
Он сидел в центре круга и рассказывал истории.
He sat in the center of the circle and told stories.
Here, 'круга' denotes a metaphorical network or group of acquaintances, reflecting social relationships.
Я посоветовал ему расширить круг знакомых.
I advised him to expand his circle of acquaintances.
This usage relates to geometry, where 'круга' signifies the shape and properties of a circle.