Things You Keep Hidden with Q

• Quarters

  Coins are money; people often hide spare quarters

• quilt

  You might hide cash, letters or items under a quilt.

• queerness
• Questions

  Unasked questions can be kept to yourself

• question

  You can keep a question to yourself, hidden

• Quartz

  A quartz crystal or gem could be hidden away

The words in the list Things You Keep Hidden with Q come from players of the word game Categories game.