A case for carrying or storing tools, a box or chest or cabinet for holding hand tools, computing A set of pre-existing routines for use in writing new programs

The programs, routines, and symbolic languages that control the functioning of the hardware and direct its operation, (computer science) written programs or procedures or rules and associated documentation pertaining to the operation of a computer system and that are stored in read/write memory, computing Encoded computer instructions, usually modifiable (unless stored in some form of unalterable memory such as ROM). Compare hardware

Plural form of routine