Can searching on tags include excluding a tag?

I have a situation where I’d like to tag topics when I send them to a downstream summary, then exclude those topics from future searches when I look for the next one to summarize and send.

Is there a way to search on ‘not’ a tag (-tag, for instance) so I can exclude those tagged prior topics?

사실 -tag: 검색은 지원하고 있습니다. New search operator "not" for tags only - #32 by kasiabulat 를 참고하세요.

예를 들어, Contribute > Feature 태그가 붙은 주제 중 pr-welcome 태그가 붙지 않은 항목을 검색하려면
#contribute:feature -tag:pr-welcome을 검색하면 됩니다.

Excellent! Works great, and cool that one can code tags into the initial search box… always more to learn.