This is the 3010th most frequent Russian word.
жалобы
"Complaints."
In this sentence, 'жалобы' is used in its singular form 'жалобу', meaning an official complaint or grievance expressed by someone about a specific issue.
Он написал жалобу на шумных соседей.
He wrote a complaint about the noisy neighbors.
Here, 'жалобы' represents pluralized general expressions of physical or emotional discomfort typically reported to a professional.
Доктор сказал, что жалобы на головную боль поступают часто.
The doctor said that complaints about headaches are frequent.
In this formal context, 'жалобы' refers to multiple instances of official grievances or reports issued by employees to point out workplaces issues.