8. If the dictionary entry for a word contains the label colloquial, that means this word is A. used only in certain geographical areas by certain groups.
B. best used in casual conversations and informal talks.
C. used differently today than it has been in the past.
D. no longer used.

you may need to add a question, yeah?

moon-letters were a method of writing invented by the dwarves. moon-letters were ordinary runes, but written in such a way that they could only be read when the light of the moon shone behind the writing. some moon-letters could be read by any moonlight, but it was possible to make the writing even more secret. more sophisticated moon-letters could only be read by the light of the same shape of moon, or at the same time of year, as when they were written. hope this !