title_body: Can I suppress Wikipedia lookup on a Kindle Paperwhite?
upvoted_answer: I share your pain and although I don't have a solution (almost in 2020...) I do have a viable explanation why they keep it this way.
  
  Two factors, based on my thinking:
  - They don't want to show an empty card, so they switch to another source when a dictionary definition is not found. (to Wikipedia)
  - They have to pay for translations over a certain quota, so they avoid doing unnecessary queries, and therefore will never show the online translation card first.
  
  In addition, it seems likely that they don't pay for Wikipedia searches and don't care about the unnecessary, pointless, mindless load that they make on Wikipedia servers.
  
  In my opinion they should show the dictionary card first, regardless of whether a definition was found. Show the online translation second, and the Wikipedia one third. (Assuming that they would never pay extra and show the online translation first... which would actually be best for users). So I suggest that they ALWAYS show:
  
  Dictionary-Translation-Wikipedia
  
  Current behavior, as of Dec 2019:
  Regardless of whether the WiFi is turned on, they show:
  - Dictionary-Wikipedia-Translation when the term is found in the dictionary.
  - Wikipedia-Translation-Dictionary when the term is NOT found in the dictionary.