As I saw the thread, the first thing that came to my mind was can’t this poster use Google just to check for the meaning, is the necessary the poster create any thread just because of the meaning of Op. this particular issue have been discussed before on the forum here, let’s just wait for like few months now, a thread like this will be created again, sometimes we should just google search something’s and you will get perfect answer, or we should just make use of search button to avoid repetition of threads always.