What is the difference between q & Q in Klingon? q is a Voiceless uvular stop, IPA [q]. Q is a Voiceless uvular affricate, IPA [q͡χ]. Answered 2016-12-07 [Originally posted on http://quora.com/What-is-the-difference-between-q-Q-in-Klingon/answer/Nick-Nicholas-5]