CW

1. Cable & Wireless plc
2. Cable & Wireless plc. (telecommunications company)
3. calcofluor white
4. CalcWare
5. Calendar Week
6. Call Waiting
7. Canada West
8. Canada's Wonderland
9. Carat Weight (precious minerals)
10. Carbonated Water
11. Caribbean Wholesaler
12. Caribbean Writer
13. Carl Weber
14. Carl Wheezer
15. Carnauba Wax
16. Caroline Wood
17. Carrier wave
18. Carrier Wave
19. Carson Wagonlit (travel agency)
20. Caseworker
21. Castle Wars (gaming, Runescape)
22. Castle Wolfenstein
23. Catalog Washington
24. CATEGORIES OF WORK
25. Catherine Wheel (band)
26. Cat's Whisker
27. Caution and Warning (also seen as C&W)
28. CBS and Warner Bros (televison network)
29. CBS Warner (TV network)
30. cell walls
31. Celtic Woman (musical group from Ireland)
32. Center Wernher
33. Center Western
34. centiwatt (cW)
35. CFOK Westlock
36. Championship White (Acura Integra Type R color)
37. Chaotic Wrestling (Massachusetts)
38. characteristic wastes
39. Checking Weather
40. Cheese Whiz (food product)
41. Chemical warfare
42. Chemical Warfare
43. Chemical Warfare; Continuous Wave
44. CHEMICAL WARHEADS
45. Chemical weapon
46. Chemical Weapon(s)
47. Chemical Week (magazine)
48. Chest Wall
49. Chest wall compliance
50. Chicken Wings
51. Chief Warrant Officer (US Army)
52. Child Welfare
53. Chilled Water
54. Choice Web
55. Christopher Walken
56. Christopher Ward (watchmaker; various locations)
57. Cigar Weekly
58. Cingular Wireless
59. Circulating Water
60. city water
61. Civil War
62. Civil Works
63. CL Woolhiser
64. Clan War (gaming)
65. Claremont Winds (Claremont, CA)
66. ClarisWorks
67. ClarisWorks
68. Classic Wizard
69. Classical World
70. Classwork
71. Clay Walker (country music artist)
72. Clerk Water
73. Cleveland Watkiss
74. Client Workshops
75. Clockwise
76. Clone Wars (Star Wars)
77. Coal Warfighter
78. Coalition Warfare
79. Coast of Washington
80. coconut water
81. coded wire
82. Coders Workshop (UK programmers' conference)
83. CodeWarrior
84. Cold War
85. Cold War
86. Cold Water
87. Cold Weather
88. Cold Welding
89. Cold Worked (metal fabrication)
90. Colgate WD
91. Collaborative Writing
92. College Writing
93. Colonial Williamsburg
94. Colonial Williamsburg
95. Colorado Water
96. Column Waste
97. Combat Wing
98. Command Word
99. Committee Washington
100. Common Worship
101. Common Worship
102. Commonly Wood
103. Commonwealth
104. Communications Wing
105. Complaining Witness
106. Complete Warrior (Dungeons & Dragons book)
107. Complex Weavers
108. Complied With
109. Complywise Ltd (UK)
110. Composite Wave
111. Composite Wing
112. computer wizards
113. Computerworld
114. Computing with Words
115. Compuworld
116. Concealed Weapon
117. Concern Worldwide
118. Concordia Wis
119. Condenser Water
120. Conditioned Water
121. conductivity water
122. Conference on Cyberworlds
123. Congress Washington
124. Congress Watch
125. Connetquot West, Inc (Farmingdale, NY)
126. Consistent With
127. CONSTANT WATTAGE
128. constructed wetland
129. CONTACT William
130. Content Warning
131. Contention Window
132. Contests Website
133. Continuation Workshop
134. Continuos Wave
135. Continuous wave
136. Continuous wave
137. Continuous Wave
138. Continuous Wave (radar)
139. continuous wheat
140. continuous workdays
141. Continuous Working-Level Monitoring (radon measurement)
142. Contraband Watch (prisons)
143. contractional work
144. Contractor Westinghouse (electronic tubes made by Westinghouse Canada for US Army)
145. control women
146. Control Word
147. Conventional wisdom
148. Conventional Wisdom
149. Converter Workshop
150. Cook Islands 
151. Cook Islands
152. Cooling Water
153. Cooperating Witness
154. Copywriter
155. Corner Kicks Won (soccer)
156. Cornwall
157. Correlation Window
158. Cost and Workload
159. Counterintelligence Warfare
160. Country & Western
161. Country/Western (music)
162. County Carlow
163. County Wide
164. Coursework (education)
165. Crap Weasel
166. Crazy Wisdom
167. Creative Wonders (learning games company)
168. Creative Works
169. Creative writing
170. Creative Writing
171. Crewe (postcode, United Kingdom)
172. Crimean War
173. CrimeWatch
174. Crimson Wave
175. Cross Wind
176. Crossworlds
177. Cruiserweight (boxing)
178. Crumbling Walls (quorum protocol)
179. Cryptic Writings
180. Cube World
181. Current Weight
182. Current Workspace
183. Curtain Wall
184. Curtiss-Wright
185. Cushman & Wakefield LLC
186. Custom Wood
187. CustomWare (methodology for custom services and training on rapidly evolving technologies; The New CustomWare Company)
188. CW complex
189. Cyber War
190. Cyber Warfare
191. Cyberworlds (International Conference)
192. Drag coefficient
193. Morse code
194. The Crimson White
195. Warrant officer 
196. Wave-Making Resistance Coefficient (Naval architecture)