(1) In database management, an address embedded within the data that specifies the location of data in another record or file.

(2) In programming, a variable that holds the address of another variable or the address of the beginning of an array of variables. When a pointer to an array is used, it is made to point to any element in the array by incrementing or decrementing its contents (incrementing or decrementing the address). See subscript.

(3) A symbol used to point to some element on screen. See cursor.

(4) See symbolic link and redirection.