You can use Listfor this problem.
Instead if _lines
of type string array use
List<KeyValuePair<string,bool>> _lines;
And the condition should be
if (ScrollLabel._lines[i].Key.Contains(WordsList.words[x]) && !_lines[i].Value)
{
_lines[i].Value = true;
...
...
}
solved How to post new messages in every function call?