noun A code used to represent multiple (possibly unrelated) data items.
noun An established code (signifier) that also acts as a new code, either representing additional (related) meanings, or dividing into various nuances of the original meaning.
noun Inventory that can no longer be sold (such as items that are past their sell-by date).
verb To use as an overcode for.
verb To act as an overcode for.
verb To use a particular code or set of codes too much.
verb To code too many things or include too many codes in a coding system.