1. Case refers to the grammatical relationship between words in a sentence, such as subject, object, possessor.
2. Languages like Pitta-Pitta use case suffixes added to nouns to indicate this relationship. For example, -lu marks the subject of a transitive verb (ergative case) and -nha marks the direct object (accusative case).
3. Latin also uses case suffixes added to nouns and adjectives. The six main cases in Latin are nominative, vocative, accusative, genitive, dative, and ablative.