title_body: How to create plain text flashcards for the Kindle? Amazon for the Mac can create flashcards:
  
  Amazon Device Support › Kindle for Mac › Read Books› 
  
  
  Read with Flashcards
  
  Flashcards are note cards created for select content on Kindle for Mac, which include a word and definition. You can use them to test your memory of key terms and concepts. 
  
  
  • Access Flashcards: ◦ While reading, click on the Flashcards  icon, located on the left side of the screen. 
  
  • Create Flashcards Decks: ◦ While reading click on the X-Ray  or Notebook  icon, and select the Export to Flashcards  icon. Add a name for the Flashcards Deck and click OK to create a new entry. 
  ◦ While reading click on the Flashcards  icon and click on the plus icon at the top to create a new deck. 
  
  • Edit Flashcards: ◦ Click on Edit Deck at the lower right corner of the screen, select a section and make your changes, and then select Done. Click on Flip Sides to reverse the order of the information on your Flashcard. 
  ◦ To delete a Flashcard, click on Edit Deck and then click on Delete Card and select OK. 
  
  • Use Flashcards ◦ While reading, click on the Flashcard  icon and then select the set you want to use. Click on a card to read the other side. 
  ◦ To shuffle your set, click on the Shuffle icon. 
  ◦ To restart your set, click on the Refresh icon. 
  
  
  But how can I do something like that from Windows or Linux?  Perhaps even typing in manually on the Kindle itself...
upvoted_answer: Yes,Windows now has this feature.
  
  For a nicely detailed look, see:
   https://www.digitalcitizen.life/how-use-kindle-app-windows-read-ebooks?page=1