Create a cross-reference system (maybe database) that can be used to translate tags.

The translation can be between languages (like english and spanish). But the "translation" can also help with consistency between browsers on the web, or between differing technologies, like cellphones and laptops.

Since tags are metadata, their purpose is factual. Precise numerical coding can help distinguish the difference between "baking" ceramics and "baking" bread.

The CyberInstitute uses United Nations classification and coding systems for products and processes. These are not visible to the user, but it facilitates language cross-referencing.

This system could be expanded to include all possible tags, and then user-friendly interfaces could be developed to use them.