лунная буква (одна из 14 букв арабского алфавита, не влияющих на произношение "L" в предшествующем определённом артикле).
en (лингв.)
After a while you will naturally be able to distinguish a sun letter from a moon letter, simply by whether it sounds wrong or right, but if you have not reached that stage, it may be useful to learn which letters are sun letters and which letters are not.
