This is the 1581st most frequent Russian word.
служб
"Служб" is the genitive plural form of "служба," meaning "services" or "duties."
The word 'службы' refers to 'services', particularly official or governmental functions, in the context of institutions offering help.
Государственные службы предоставляют разные виды помощи населению.
Government services provide various types of assistance to the population.
Here, 'службе' is used to mean 'service', in the context of an organisation focused on delivering products.
Он работает в службе доставки товаров.
He works in a goods delivery service.
In this case, 'службы' denotes 'services', referring to religious ceremonies conducted by the church.