When a Board is no longer needed, you can archive it to simplify your experience. Not to worry, you can restore archived Boards at any time.

To archive a Board, go to the Settings, scroll down to see the "Archive this board" button at the bottom of the screen.

Then click on "Archive" on the pop-up!!

Another easy way to archive a Board is by simply clicking on the 3 dots next to a Board as illustrated below and then clicking on "Archive board".

Now if you ever need to access an archived Board then head to My Boards view (by clicking on the big Aboard logo on the top left corner of the screen) and click on "Archive" as shown below.

After that your archived Boards will show up, now if you want to restore the Board click on the three vertical dots as shown below and then hit "Restore board".