Dear SEA_ASI,
Good day! Thank you for posting to Microsoft Community. We are happy to help you.
According to your description, seem that you want to use Wikipedia in Teams as a search engine. We apologize that this is out of our support scope because it does not have such a function in Teams by default. However, we have a dedicated team that has abundant experience with Teams applications, we kindly suggest you post this question in Microsoft Q&A. And experts there might available to provide you with further suggestions to allow Wiki to search in Teams.
Sincerely,
Tommy | Microsoft Community Moderator
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