1. the change of grammatical category of a word without the addition of an affix. 이게 무슨 단어를 뜻하는 것인가요?

2. which of the following examles belong to an exocentric compound? 답이 무엇이죠?
a. diesel motor b. pickpocket c. pain-free d. wetsuit

3. which of the following examles belong to ancopulative compound? 답이 무엇이?
a. redskin b. coffee table c. bittersweet d. bloodthirsty