Where two or more taxonomy authors agree on a common understanding then ensure they also have a common implementation.
Example
An example code-list is the below energy source list:

Two otherwise different and independent taxonomies (taxonomy-a and taxonomy-b) can both use above common “Energy Source” code list as a dimension:

Links
Example using taxonomy A (and using shared energy source list):
Inline Viewer – CarMaker Sustainability Disclosure (xbrl.org)
Example using taxonomy B (and using shared energy source list):
Inline Viewer – Van Build Inc Sustainability Disclosure (xbrl.org)
Taxonomy and report package:
https://xii.ci.xbrl.org/ixbrl-samples/xii-sig-dsd-meeting-8/xii-sig-dsd-example-9.zip