This is the 426th most frequent Hungarian word.
sikert
"Success."
The word "sikert" is used in its accusative form, referring to "success" as the direct object of the action.
Minden erőfeszítésemet beleadtam, hogy sikert érjek el.
I put all my efforts to achieve success.
Here, "sikert" again appears in its accusative form, being the result or outcome brought about by persistence.
A kitartás meghozza a sikert.
Persistence brings success.
In this context, "sikert" highlights the specific instance of success that the person being addressed achieved.