This is the 8761st most frequent Russian word.
победу
"Victory."
The term 'победу' refers here to the concept of victory as the object of the verb 'одержали' (achieved), thus functioning as a direct object in accusative case.
Мы одержали победу в соревновании.
We achieved victory in the competition.
In this sentence, 'победу' is used to represent the concept of victory, being the object of the verb 'посвятил' (dedicated).
Он посвятил победу своей семье.
He dedicated the victory to his family.
Here, 'победу' is applied to signify the concept of victory as the object of the action performed by the participants (celebrated), and it is in accusative case.