As long as I'm posting good Scrabble® words:
qat: An African and Arabian plant (
Catha edulis) whose leaves have a stimulating effect when chewed.  Also used for tea.  Also spelled "khat".
qintar: A unit of Albanian currency, valued at 1/100 lek.
qiviut: "[Esk.]", so I assume it's Eskimo; refers to a certain kind of musk ox hair.
qoph: Ninteenth letter of the Hebrew alphabet.  Also spelled "koph".
That's all that I found.  If you have QE, you're stuck.
All definitions paraphrased from the Webster's New World Dictionary, Second College Edition, ed. in chief David B. Guralnik, © 1980 Simon & Schuster, New York.  Just so you know.
Oh, and LJ spellcheck recognizes none of them.  Just so you know.
Edit:  Strange, 
qanat isn't in there.  I guess Mr. Guralnik considered 
ancient Arabic irrigation systems too obscure to include in a mere college dictionary – or he never heard of them.  I won't hold it against him, of course; I know nothing about him, although 
he seems to have been a fascinating fellow (although now five years deceased).