This is the 359th most frequent Serbian word.
подршке
Support.
The word 'подршке' here is in the genitive case and signifies the type or nature of the abstract noun related to receiving emotional backing from friends.
Добила је пуно подршке од својих пријатеља приликом одлуке да промени посао.
She received much support from her friends when she decided to change jobs.
In this sentence, 'подршке' is used in the genitive case to express a needed and abstract type of support for a conceptual idea.
Ова нова идеја захтева много подршке од целог тима.
This new idea requires a lot of support from the entire team.
Here it describes experiencing an encouraging and motivating sentiment, 'подршке' again being in the genitive case because of being tied to the abstract sense of support and originating source.