This is the 6068th most frequent Russian word.
социальную
"Social" (adjective related to society or social aspects).
The word "социальную" here is used as an adjective to describe "помощь" (assistance), indicating that it relates to society-related support or welfare.
Она получила социальную помощь от государства.
She received social assistance from the government.
In this sentence, "социальную" modifies "акцию" (campaign), showing its connection or benefit to society.
Школа проводит социальную акцию по сбору одежды для нуждающихся.
The school is conducting a social campaign to collect clothes for those in need.
Here, "социальную" describes "инициативу" (initiative), denoting its focus on societal issues or involving community efforts.