colour code
verb1
UK To mark items with a colour code as a means of sorting.
noun, verb — 3 senses
UK Any system where colours are used to categorize elements of sets.
UK An individual mapping of a colour to an element in such a set.
UK To mark items with a colour code as a means of sorting.
Entry derived from the Wiktionary, under licence CC BY-SA 4.0 — list of authors.