(grammar) A noun case used to specify a time. In English, this is usually expressed by the preposition "at," as in "at six o’clock," "at midnight," "at Christmas." Hungarian is a language that uses the temporal case.

(grammar) A case used to express the lack or absence of something. It has the meaning of the English preposition "without." The caritive case is found in some Caucasian languages.

(grammar) A grammatical case used to express the lack or absence of something. It has the meaning of the English preposition without or the affix -less.

(grammar) A noun case used to indicate that an object is affected only partially by the verb, or that the effect is not real. It often corresponds roughly to the English words "some" or "any." It is similar in many ways to the genitive case. Some languages that make use of the partitive case include Finnish and Estonian.

Alternative spelling of headcase

(grammar) Noun case used to indicate a temporary state of being, such as the site of an action or the time at which it took place.

A case designed to protect musical instruments during travel.

(grammar) Noun case used to indicate location on an object. In English, it roughly corresponds to the prepositions "on" or "on top of", as in "on top of the house". Hungarian is a language that uses the superessive case.

(law enforcement, slang) A criminal investigation that has not been solved after a considerable time but remains “on the books” and may be reopened when new evidence appears.

(computer science) Distinguishing upper- and lower-case letters. Often used in computer science to indicate a distinction is made in comparison or equality of letters based on case. For example, a case-sensitive password will not recognize "Password" and "password" as the same, but a case insensitive comparison would.