It is important to know when talking about Ok Nouns that, there is no definite or indefinte article.

             Fau  house

Fau  the\a house                                            Faur  the\a houses
Faum  house (object)                                     Faurm  houses  (object and plural)
Faum  house (dative) to towards the house.    Faurm  (dative plural) to towards the houses

In Ok , nouns can take the negative. This happens when the verb is in the negative but is in any tense other than the present

Faud  not the/a house                                          Faurd  not the\ houses
Faumd  not the\a house (object)                          Faurmd  not the\ houses (object plural)
Faumd  not to \ towards the\a house (dative)       Faurmd  not to\towards the\ houses (dative plural)
 

The sequence of  these case markers must always be: -r-m-d.  Any other sequence would tend to cause the speaker to say a schwa. thereby ruining Ok's monosyllabic goal.
 

The other type of Ok nouns, VC nouns, have to be declined differently, because, as always in Ok, the goal is to keep the affix down to one syllable.
 

                                                Wng  Automobile
 

Wng  the\a car                                     Rwng  the cars
Wmng  the\a car (object)                     Rwmng  the cars (object plural)
Wmng  to\toward the\a car (dative)      Rwmng to\towards the cars (dative plural)

Please notice that in VC nouns the -M- which denotes the object and also the dative case is *inserted* between the vowel and the final consonant. This is a needed irregularity that makes it possible to pronounce these nouns. The -d- and, -r- markers for the negative and plural appear before the initial vowel.

Once again the Ok noun takes the negative when the verb is not in the present tense

Dwng  not the\a car                                                Drwng  not the cars
Dwmng  not the\a car (object)                                 Drwmng  not the cars (object plural)
Dwmng  not to\toward the\a car (dative singular)      Drwmng not to\toward the cars (dative plural)
 
As stated above, the -m- marker is always inserted. But unlike CV nouns the case markers must always appear in the order:  d-r-V-m-C. In this way no accidental pronunciation of a schwa is possible.

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                                                 This and That

Joodh- This
Os- That

In English this and that have plural forms that are used when the noun is plural.

The plural form of this, is these. And the plural of that, is those.

In Ok, joodh (this) and os (that) do NOT have plural forms. Instead it is understood that 'joodh' means 'these' when the Ok noun is plural, and, that 'os' means those.

Joodhwng (joodh-wng) = This car
Oswng (os-wng) = That car
Joodhrwng (joodh-r-wng) = These cars
Osrwng (os-r-wng) = Those cars

( Remembering that -r- makes the noun plural)
 

                                The Genitive/Posessive

 In Ok, the genitive and the posessive are done in the same way. Ok uses compound nouns to show the genitve posessive.

mother's flower = flaudhrau (flau-dhrau) (mother-flower)
The dog's plate = aeggrae (aeg-grae) (dog-plate) (There are no articles in Ok, so, the 'the' is understood. This could also translate as 'A dog's plate')
mother's plate= flaugrae (flau-grae) (mother-plate)
A dog's flower = aegdhrau (aeg-dhrau) (dog -flower)
 

The significance of the knowledge = haulji (hau-lji) (knowledge-significance)
The condition of the document = prynjoo (pry-njoo) (document-condition)
Surface of the Earth = njunjy (nju-njy) (Earth-surface)
A touch of Heaven = plongje (plo-ngje) (Heaven-touch)

Often In Ok, afixes are moved around within a word in order to emphasize a meaning. However, the afixes of a genitve posessive compound cannot be changed or separated if it is to be understood. The two afixes must remain compounded in that order.