1. call attention point out carefully and clearly
  2. contention the act of competing as for profit or a prize
  3. culmination a concluding action
  4. attention the act of concentrating on something
  5. agglutination the coalescing of small particles that are suspended in solution; these larger masses are then (usually) precipitated
  6. calcination the conversion of metals into their oxides as a result of heating to a high temperature
  7. calumniation a false accusation of an offense or a malicious misrepresentation of someone's words or actions
  8. concatenation the act of linking together as in a series or chain
  9. coordination regulation of diverse elements into a harmonious operation
  10. chlorination the addition or substitution of chlorine in organic compounds
  11. inattention lack of attention
  12. columniation the arrangement of columns in a structure
  13. golden chain an ornamental shrub or tree of the genus Laburnum
  14. convention the act of meeting formally
  15. pretentious creating an appearance of importance or distinction
  16. retention the act of keeping something
  17. continuation the act of carrying on with an activity without interruption
  18. contentious showing an inclination to disagree
  19. condonation a pardon by treating the offender as if the offense had not occurred
  20. hallucination illusory perception