What does C. stand for?

What does C. mean?

C	Credit Business » Accounting
C	Costs Business » Accounting
C	Cargo/Transport aircraft Miscellaneous » Aircraft
C	Coast Guard (military aircraft prefix) Miscellaneous » Aircraft
C	Covered Academic & Science » Architecture
C	Compression of earth Academic & Science » Architecture
C	Create Computing » Assembly
C	Condition Computing » Assembly
C	Command Computing » Assembly
C	Code Computing » Assembly
C	Certified Miscellaneous » Awards & Medals
C	Chrysanthemum Academic & Science » Botany
C	Climbing Academic & Science » Botany
C	children and adolescents Medical » British Medicine
C	cold and clammy Medical » British Medicine
C	counsel and care Medical » British Medicine
C	curette and cautery of skin lesion Medical » British Medicine
C	Cute Internet » Chat
C	Crabby Internet » Chat
C	Celsius Academic & Science » Chemistry
C	Cytosine Academic & Science » Chemistry
C	Carbon Academic & Science » Chemistry
C	Cotton Miscellaneous » Clothes
C	Charlotte, North Carolina (mint mark on early United States gold coins) Miscellaneous » Coins
C	Colored Miscellaneous » Colors