Built-in

Built-in, builtin, or built in may refer to:

Computing

 * Shell builtin, a command or a function executed directly in the shell itself
 * Builtin function, in computer software and compiler theory

Other uses

 * Built-in behavior, of a living organism
 * Built-in furniture
 * Built-in inflation, a type of inflation that results from past events and persists in the present
 * Built-in obsolescence, in industrial design and economics
 * Built-in self-test, a mechanism that permits a machine to test itself
 * Built-in stabiliser, in macroeconomics