card-keys

• plural

  plural

  The grammatical form denoting more than one person, place, thing, or idea.

  of card-key.
  card-key

  noun

  a small plastic card with magnetic coding that is read electronically when inserted into a scanner and used in place of a key to open locks, hotel doors, etc.

More Suggestions

• card-cut
• cardie
• cardinals
• carditis
• cardplayer
• hard-knock