re: "Old churches - haunted. Graveyards - megahaunted."
The dictionary is here.
One can find several guides to English usage here, so you may select the one that most appeals to you.
You have 5 words and 6 errors, and that's just the technical ones. You have also made two context errors, for a grand total of 8, leaving you with a cumulative score of negative-3.
Try not to be so negative.
