The grammatical case indicates the function of the word in the sentence. There are five cases; they are named with an ordinal number: first, second, third, fourth and fifth cases.

In the overview of word forms, the cases are represented by (1), (2), (3), (4) and (5), respectively, e.g., under word 3958 sabbatismos 'Sabbath celebration, Sabbath rest':

.1 sabbatismos - sabbath rest (1)

Only in the common case where a word form in the fifth case corresponds to that in the first, this fifth case is not mentioned separately, but always included with the first. The main functions indicated by the cases are: subject (first case), the adjective we represent using the word "of" (second case), cooperating object (third case), direct object (fourth case) and addressed person (fifth case). In the following example sentences, the words are italicized whose Greek translation would be in the named case:

- first noun: An apostle of Christ Jesus makes this known to you, brothers.
- second noun: An apostle of Christ Jesus makes this known to you, brothers.
- third noun: An apostle of Christ Jesus makes u this known, brothers.
- fourth noun: An apostle of Christ Jesus makes you this known, brothers.
- fifth noun: An apostle of Christ Jesus makes this known to you, brothers.

In modern Dutch, the name case endings of earlier times have almost completely disappeared. Remnants include a second case of "the house" in the phrase "the master of the house," or a third case of "house" in the saying "at the house of.
See further at grammar.