This is the 11430th most frequent Russian word.
добровольческого
"Добровольческого" means "voluntary" or "of a volunteer."
The word 'добровольческого' here is an adjective describing the noun 'movement' (движения), indicating that the movement is related to volunteering.
Этот проект создан в рамках добровольческого движения.
This project was created within the framework of a volunteer movement.
The word 'добровольческого' functions as an attributive adjective associated with 'типа' (type), indicating that the type of events pertains to volunteering.
Он участвует в добровольческого типа мероприятиях.
He participates in events of a voluntary type.
The word 'добровольческого' serves as an adjective qualifying the noun 'центра' (center), specifying that the center is dedicated to volunteering activities.