There's no function for this - one of the main reasons for using labels is that users have free range to add anything.
There is a simple way to do it on JIRA though - create a custom field (a multi-select list), populate it with your pre-defined values and offer that to the users instead of (or as well as) labels.
I’m a designer on the Jira team. For a long time, I’ve fielded questions from other designers about how they should be using Jira Software with their design team. I’ve also heard feedback from other ...
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