1. calorie.
2. Optics. candle; candles.
3. carat.
4. carbon.
5. carton.
6. case.
7. Baseball. catcher.
8. cathode.
9. cent; cents.
10. centavo.
11. Football. center.
12. centigrade.
13. centime.
14. centimeter.
15. century.
16. chairman; chairperson.
17. chapter.
18. chief.
19. child.
20. church.
21. (with a year) about: c. 1775. [ circa, circiter, circum ]
22. cirrus.
23. city.
24. cloudy.
25. cognate.
26. color.
27. gallon. [ congius ]
28. copper.
29. copyright.
30. corps.
31. cubic.
32. (in prescriptions) with. [ cum ]
33. cycle; cycles.