| Word | Meaning |
| Caducity | The infirmity of old age. |
| Calligraphy | The art of beautiful hand writing. Elegant penmanship. |
| Callous | A man devoid of kind feeling and sympathy |
| Cannibal | Of a man or animal that feeds on its own species |
| Carnivorous | A flesh eating animal |
| Catalogue | A list of books |
| Celibacy | Abstinence from sex |
| Celibate | One who is unmarried |
| Cemetery | A place for burial of dead bodies. |
| Centenarian | A person who is above hundred years |
| Centenary | Celebration of a hundredth year, once -a-century |
| Centripetal | Anything tending to move away from centre. |
| Century | One hundred years. |
| Colleague | A co-worker or a fellow-worker in the same institution |
| Compatriot | Belong to same country. |
| Congenital | Belonging or pertaining to an individual from birth |
| Congregation | An assembly of worshippers. |
| Conscription | Compulsory enlistment for military or i\other service |
| Contemporaries | People living at the same time |
| Contemporary | Belonging to the same period of time |
| Convalescent | One who is recovering from illness |
| Cosmology | Science of origin of universe |
| Cosmopolitan | One who can make himself at home in all countries |
| Cosmopolite | A citizen of the world |
| Couplet | A stanza having two lines in verse. |
| Credulous | A person who readily believes whatever is told to him/her. |
| Cryptography | Study of secret writing and coded words |
| Curable | Which can be cured. |
| Cynic | One who questions everything |
| Cytology | Study of cell |
| Dead letter | An unclaimed letter |
| Deaf | One who cannot hear |
| Debar | Prevent a person from admission or a right. |
| Declamation | Act or art of rhetorical exercise. |
| Delegate | To give one |
| Democracy | Government of the people, for the people, by the people |
| Demonstration | Show of force to intimidate. |
| Depreciate | To go down in value |
| Dermatology | Study of skin. |
| Desert | Where neither water nor vegetation is found. |
| Deteriorate | To go from bad to worse |
| Dictatorship | Government carried on by an absolute ruler. |
| Dictionary | A book dealing with words in alphabetical order |
| Dieting | A small allowance of food to become slim. |
| Digestible | That which can be digested |
| Dipsomania | A strong desire to take liquor. |
| Disenfranchisement | To take away some one |
| Divisible | That Which can be divided. |
| Dotage | Extreme old age when one behaves like a child |
| Draw | A game in which neither party wins |
| Drawn/ Tie | A game or batter in which neither party wins |
| Drought | Continuous dry weather and lack of rain and water. |
| Dumb | One who cannot speak |
এই লেকচারের পরের পেইজে যেতে নিচের 
…. তে ক্লিক কর।