to caulk	to make watertight by filling in cracks
caucus	a private meeting of members of a party to determine polity
catholic	general, universal
catharsis	purging or cleansing of any passage or the body
categorical	without exceptions, unqualified, absolute
catechism	book for religious instruction
catcall	a shout of disapproval, boo
catastrophe	a calamity, a disaster
cataract	a great waterfall/ eye abnormality
catapult	a slingshot/ a hurling machine
catalyst	an agent which brings about chemical change
cataclysm	an upheaval, a deluge
casualty	a serious or fatal accident
to castigate	to criticize severly, to punish
cascade	a small waterfall
cartographer	a map-maker
carping	finding fault
carnivorous	meat-eating
carnal	fleshly
carnage	destruction of life
caricature	a distortion, a burlesque
to careen	to lurch, to sway from side to side
cardiologist	a doctor specializing in the heart
carat	unit of weight for precious stones
cardinal	chief