High Quality Content by WIKIPEDIA articles! In Icelandic orthography, the N-rule dictates whether or not one or two n?s should be written sometimes affecting pronunciation.It can often be hard to find related words to prove whether one or two n?s should be written, and if all fails, one can try to eliminate options until the most likely one has been found. The best way is to look up words with two n?s in their stem. If no such words are to be found, the use of one n is practical.One is supposed to write ?enn? - meaning "still" - whenever it's possible to use ?enn þá? instead without changing the meaning of the sentence. In every other case, ?en? is used. ?En?, which can mean different things, is often used when comparing. ?En? can also be a conjunction.