What is the exact meaning of "call" resounding in the US media [duplicate]

After the election, I hear, to me, new usages of 'call'.

AP called Arizona for Biden

The results are too close to call.

In first look, I rendered it as 'announce' something. But I see this is tainted with a sense of prediction. What is the exact meaning of this 'call' here?


From Merriam-Webster

11: to say or guess what the result will be
The election is too close to call.

So it means that the AP predicted that Biden will win Arizona's vote for President.