Generally - there are always exceptions in English - vowels followed by double consonants indicate a short vowel sound. If you saw the word "runings", you would expect a long vowel sound, as in rune.
Another example:
coping
copping
You mean why the word 'Finnish' has two n's in it? That's just how the word is spelled...
like banks say fran-ks. but its just spelled as francs. It is pronounced as fran-ks.
The driving distance between the two is about 142 road miles.
The present continuous form of "run" is spelled "running".
sprint
The accented syllable of sustenance is the first syllable - /SUS-ten-ance/ (spelled in IPA as /ˈsʌstənəns/)
Haha yes you can...my name is Brooklynn with two N's
The word is spelt as you have done in the question.
There are about 9.778 miles between Halifax, NS and Sackville NS.
The word "embarrassed" is spelled with two "r"s, two "s"s, and one "e".
"ns" can refer to different things depending on the context. Common meanings include "nanoseconds" as a unit of time measurement, "nameserver" in the context of domain names and networking, and "nonspecific" when used in general conversation.
no Finally can not be spelled two ways !