This is the 4706th most frequent Russian word.
желудка
"Желудка" is the genitive singular or accusative plural form of "желудок," which means "stomach."
In this sentence, 'желудок' is used to refer to the organ related to digestion, expressing discomfort within.
У меня болит желудок.
I have a stomach ache.
Here, 'желудок' is used to describe its natural role or function, demonstrating a biological or scientific context.
Функция желудка – переваривать пищу.
The function of the stomach is to digest food.
In this usage, 'желудок' symbolizes the need for recovery after consumption, showing a more situational and idiomatic perspective.