code consisting of a series of vertical bars of variable width that are scanned by a laser; printed on consumer product packages to identify the item for a computer that provides the price and registers inventory information | a coding system used for transmitting messages requiring brevity or secrecy |
| a set of rules or principles or laws (especially written ones) |
| (computer science) the symbolic arrangement of data or instructions in a computer program or the set of such instructions |
| a series of letters, numbers or symbols assigned to something for the purpose of classification or identification |