(grammar) The case used to indicate the subject—or agent—of a finite verb. / (obsolete, grammar) The subject of a verb.

(computer science) Making a distinction between upper-case and lower-case letters.

(computer science) Treating or interpreting upper- and lowercase letters as being the same.

The capital letters A, B, C, ... as opposed to the small letters a, b, c, ....

The minuscule or small letters (a, b, c, as opposed to the uppercase or capital letters, A, B, C).

(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.

(slang, potentially offensive) One made powerless or ineffective, as by nerves, panic, stress or exhaustion.

(grammar) Any noun case except the nominative case (and sometimes the vocative case), where the noun is the object of a verb or the object of a preposition.

A small sticker, usually placed on the front of a personal computer, stating the name of the company who produced the computer.

(grammar) case used to express direct possession, ownership, origin, etc. Though similar in many ways to the genitive case, it is not always the same. Languages that have the possessive case include English and Quenya.