This is the 9835th most frequent Russian word.
авансовые
"Авансовые" means "advance" or "prepaid" in English, typically referring to payments made ahead of time.
The word "авансовые" is used as an adjective to describe payments ("платежи") that are made in advance.
Компания выполнила авансовые платежи перед началом года.
The company made advance payments before the start of the year.
Here, "авансовые" characterizes the requests ("требования") as being related to advances or upfront agreements.
Авансовые требования сотрудников были отклонены руководством.
The advance requests of the employees were rejected by the management.
In this case, "авансовые" is used to specify sums ("суммы") given as advances prior to the project's execution.