Barcode and Bar code

Bar code and barcode are semantically related. In some cases you can use "Bar code" instead a noun "Barcode".

Bar code noun - 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.

Barcode and bar code are semantically related. You can use "Barcode" instead the phrase "Bar code" as a verb or a noun.