Classification of NounsNouns are categorized by vowels and consonants they include. For the consonants they include nouns are categorized in two groups: 15 Nouns and 16 Nouns. For the vowels they include nouns are categorized in 5 groups: a, ä; å, ø; o, ö; u, y; i, e.
15 Nouns: the first consonant of these nouns are h, j, m, n, r, s, s'
16 Nouns: the first consonant of there nouns are c, d, l, p, t, v, l'
Categorizing by vowels depends on how many syllable noun has and what is the vowel in the syllable we have to use.
If a noun has 2 syllable we use the vowel of the second syllable
If a noun has 3 syllable we use the vowel of the third syllable
If a noun has 4 syllable we use the vowel of the second syllable
ıf a noun has 5 or more syllable we use the vowel of the syllable before the last syllable.
Vowel in a syllable can be a single vowel or a diphthong. If the syllable contains a diphthong, we choose the vowel we will use according to following rules:
If there is "u" or "y" we use them,
If there is a back vowel and "i" we use the back vowel,
If there is a front vowel and "i" we use "i",
In other diphthongs we use the first vowel.
Definite ArticlesVi Söllidäävin has10 definite articles. All definite articles are 2 letters. First is a consonant, second a vowel.
If a noun is a 15 noun, the first letter of the article is "v"
If a noun is a 16 noun, the first letter of the article is "s"
we add the vowel according to the rules above to these consonants and make the article.

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E.g.: tyycciön has 2 syllable. we will use the second syllable and the vowels in it are i and ö. "ö" is a front vowel this means we will use "i". And it is a 16 noun. With these knowledges the article is "si". Si Tyycciön.
More examples: vo riol, su vuun, va raceslain, ve hiynnen.
We have to use the root word to decide the article of the noun. In a sentence if a noun takes a prefix, that noun does not take article. We use definite article when the noun does not take prefixes and indefinite article.
Indefinite ArticleVi Söllidäävin has 1 indefinite article and it is a suffix. We add "-me" to the noun. And if a noun takes this suffix, it does not take definite article.
E.g.: noidame → a love