The Celinese noun is rather more complicated than its counterpart, the verb. Whilst Standard Elithoan Celinese verbs always end in í in the infinitive, there is only one set of personal verb endings, and stem changes are relatively uncommon outside of the preterite, Celinese nouns have a number of different endings and may belong to any of three genders - which must be remembered to accurately pluralise the noun, as masculine (generally pluralised as -ím), feminine (-ot) and neuter (-ain) have different plural endings. That being said, the noun in SEC is much simpler than that of more conservative forms of the language like those of Gwyðach and Ifanco, which have conserved a full case system.
Noun gender is not obvious from a word's semantic meaning - maiðír and taðír, mother and father are not feminine and masculine, but both neuter as an example - but can usually be guessed by the the sounds the word ends in - in this case, both words ending in -r, an ending which is neuter in all but irregular nouns. This is why genders are often called "assonance groups" by Elithoans themselves.
If a noun ends in any other vowel than an o or u, it is feminine - with particularly common feminine endings being ë and -oê. Most words ending in s (except for -os, which is almost always neuter), ín, ð and th are also usually feminine too. In contrast, most consonantal endings (b, c, ch, d, f, g, p, t) are masculine alongside -u/ú endings, and most words ending in r, os or o are neuter.
One must pay closest attention to l, m, and n. The former and the latter are typically associated with the feminine, whilst m is considered typically masculine - but there are many examples of masculine (charail, servant; peiral, instrument, and even gathal, girl) and neuter (anocel, shelf; pampel, dandelion, palbol, eyelid) words ending in l, as well as words ending in m that take a feminine (elm, love, or eflím, apple) or neuter plural ending (nwym, cloud, cwelthom, myth) and words ending in n that are masculine (borin, border; cerôn, mountain) or neuter (elain, a friend made into a member of a family; balain, broom.)
Check out the gender quiz to see how many words' genders you can identify correctly!