The term "case" is used in a variety of contexts to describe a variety of different types of situations. In legal terms, a case refers to a dispute between parties who have brought their dispute to the court for a resolution. Cases can range from civil law disputes between individuals or businesses to criminal cases brought by a prosecutor against a defendant. In the field of linguistics, the term case is used to define the form of a noun or pronoun and its relationship to other words in the sentence. In grammar, case refers to a system of categorizing a language's nouns, pronouns, and adjectives according to their functions and their relations to other words in the sentence. English has three grammatical cases: nominative, possessive, and objective. The nominative case is used when a word is the subject of a sentence and corresponds to the pronoun "I"; the possessive case marks a word as belonging to someone and corresponds to the pronoun "my"; and the objective case marks the word as receiving action and corresponds to the pronoun "me," among others. While English has three cases, many other languages have much more complex systems. In the study of anthropology or archeology, the term case refers to a study of an individual or group, either in terms of their behavior or for the purpose of researching a particular time or culture. In this context, the individual or group being studied is referred to as the "case," and the use of multiple cases can be used to gain a more thorough understanding of a particular phenomena. Case is an important concept that is used in many contexts. In the legal system, it is used to refer to a dispute taken to court. In linguistics, it is used to categorize words and their relationship to other words in a sentence. Case is also used in terms of anthropology and archaeology to study individuals or groups in order to gain a better understanding of a particular time or culture. Understanding the different usages of the term case can be an invaluable tool for many fields of study.