Quch: Happy or Forehead?
Between the 'Body Parts' unit and the immediately following unit 'Adjectives,' I have learned that the word 'Quch' acan have two definitions. It can either mean 'forehead' or 'happy.' How do I know when it means what? Is it a situation where I have to rely on context clues or is there something I'm missing? In a situation where there are no context clues, would the phrase "tlhIngan Quch" mean "the happy Klingon," or "the Klingon's forehead?"
You have to rely on context, and sometimes syntax.
Context: Hab Human Quch 'ej vIl tlhIngan Quch is either the human's forehead is smooth and the Klingon's forehead is ridgy or the happy human is smooth and the happy Klingon is ridgy. You probably mean the former.
Syntax: Sey tlhIngan 'ej Quch means the Klingon is excited and happy. Quch cannot be a noun, because it's presented as a sentence conjoined with another. That forces it to be interpreted as be happy.
On the old Klingon Educational Virtual Environment (a MUSH hosted by the KLI), there was a bar called Quch Quch The Happy Forehead.