| 71. | ceiling | See also: suspended ceiling |
| 72. | celebrate | See also: to celebrate her 50th birthday; use any excuse to celebrate |
| 73. | centre | See also: I've been all over the shopping centre -er looking for him |
| 74. | century | See also: goes back to / belongs to the 9th century; towards the end of the 19th century |
| 75. | certain | See also: she has some / certain misgivings about lending him the money |
| 76. | certainly | See also: it certainly looks like it; it certainly was |
| 77. | certificate | See also: medical / doctor's certificate |
| 78. | chain | See also: put someone in chains |
| 79. | chalkboard | See also: write something up on the blackboard / chalkboard |
| 80. | challenge | See also: challenge to a fight |