custom post types - Is it possible to have "two" sets of tags?

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I have several Custom Category Taxonomies but what I am wondering is, if it's possible to have a second set of "tags"?

I am using my tags for a very specific purpose (the naming of cities) so I don't want to mix up that with what I need for another set of tags.

Sure, I can create another Category Taxonomy but the quantity of items means that a "tag" environment might be better...

Thanks

I have several Custom Category Taxonomies but what I am wondering is, if it's possible to have a second set of "tags"?

I am using my tags for a very specific purpose (the naming of cities) so I don't want to mix up that with what I need for another set of tags.

Sure, I can create another Category Taxonomy but the quantity of items means that a "tag" environment might be better...

Thanks

• custom-post-types
• tags

Share Improve this question asked Sep 15, 2020 at 10:08 HenryHenry 98311 gold badge88 silver badges3131 bronze badges 1

• Custom taxonomies don't have to be hierarchical like categories, they can be non-hierarchical like tags, in fact tags are just a non-hierarchical taxonomy – Tom J Nowell ♦ Commented Sep 15, 2020 at 12:02

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No, you can't have 2 groups of a singular taxonomy, so there is no way to separate post tags from each other without introducing hierarchy.

However, you could register a city taxonomy and declare that it's non-hierarchical. That's the primary difference between categories and tags. Categories have hierarchy, tags do not. Any taxonomy you register this way will have the same UI as tags.

For example, I registered a talk tag taxonomy for a CPT on my own site:

I just set hierarchical to false when I registered it.

In general, don't repurpose tags and categories for things, just register a new taxonomy, it saves a lot of trouble and makes your life easier.

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