1. black
2. dark
3. sinister
4. secret
5. shady
6. illegal
7. to hide (sth) away
8. to vilify
9. (loanword) to hack (computing)

1. board
2. plank
3. plate
4. shutter
5. table tennis bat
6. clappers (music)
7. accented beat in Chinese music
8. hard
9. stiff
10. to stop smiling or look serious

classifier: 塊