1
COURIER
a messenger
2
COVERT
secret; hidden; concealed
3
CRONY
a close friend or companion
4
CRUX
main point; the heart of the matter
5
CRYPTIC
having an ambiguous or hidden meaning
6
CUPIDITY
excessive greed, especially for money
7
CURB
to control or check
8
CURSORY
rapid and superficial; performed with haste and scant attention to detail
9
DEFUNCT
dead or inactive; having ceased to exist
10
DEMISE
death; the end