What does the get accessor do in this example?

Question

C++ / C#

Hello, who can explain what the word get does in this example? The code is from the book, and the role of the word get is not explained there.

private MemoryCard _secondRevealed;
public bool canReveal{
    get { return _secondRevealed == null;} // Смысл этой строчки я не понял 
  }

Answer 1

canReveal will only return true if the _secondRevealed reference is not initialized.

Answer 2

check for null

Answer 3

And what is so difficult here? Compares a class field to null. Checks if the field is initialized or not. true - means that the field is not initialized.