| Term | Definition |
| cache | noun - hiding place/something well hidden, also a computer memory storage |
| cachinnate | verb - to laugh loudly |
| cadence | noun - rhythmic sequnce or flow of sounds |
| cadre | noun - a framework, outline, or scheme, or a group of people who train others |
| cajole | verb - to coax, blandish |
| calumny | noun - a false and malicious accusation, slander |
| canorous | adjective - musical |
| captious | adjective - quick to find fault |
| catharsis | noun - relieved of emotional tension |
| celerity | noun - a rapid rate, swiftness, speed |
| chad | noun - a small piece of material left by a hole punching machine |
| charlatan | noun - a pretender for special skill of expertise, a fake, a quack, not a bailiwick |
| chary | adjective - cautious and careful |
| circumlocution | noun - use of unnecessary words to explain a idea |
| circumscribe | verb - to create limits or boundries or literally draw a circle around |