CR

1. C RCPT0518
2. C. Rajagopalachari
3. CAD Room (Met Police, London)
4. Cadet Regulation
5. Cajal-Retzius (cells)
6. Calaveras Reservoir
7. Calcasieu River
8. calcium-binding protein calretinin
9. Caleb and Rachel
10. Calibrated Range (temperature measuring device accuracy)
11. Calico Rock
12. California Research
13. Call Request (ITU-T Rec. I.451)
14. Caloric Restriction
15. Calorie restriction
16. Calspan Report
17. Calumet River
18. Camera Raw
19. Camera-Ready
20. Cancel Request
21. Candidate Recommendation (various organizations)
22. Canned Response (customer service)
23. Cannot Rate
24. Canyon Rafting
25. Capabilities Request
26. Capital Records (record label)
27. Capital Request
28. Captive Reared
29. Capture Rate
30. Carbonyl Reductase
31. Card Reader
32. Cardiac Rehabilitation
33. Cardiac rhythm
34. Cardiac rupture
35. Cardinal Red
36. Care Recipient (long-term care)
37. Caribbean Rum
38. Caries-Resistant
39. Carole Rubin
40. Carolina Raleigh
41. Carriage Return
42. Carrier Recovery
43. Carrier Route (US Postal Service)
44. Cascaded Rectifier
45. Case Report
46. Cash Retained
47. Casino Royale (book by Ian Fleming)
48. Castle Rock (disambiguation)
49. Catalytic Reactor
50. Catawba River
51. Cattle Rustler
52. Caulfield Records (record label)
53. Cedar Rapids, IA, USA
54. Cedar River (Washington)
55. Cell Relay
56. Celtic Reconstructionism
57. Celtic Reconstructionist
58. Center Referee (soccer)
59. Central Railway (India)
60. Central Ray (radiology)
61. Central Region (Order of the Arrow, Boy Scouts of America)
62. centric relation
63. Century Research
64. Certificate of Registration
65. Certification Requirement
66. Certification Revocation
67. Certified Remodeler Specialist (remodeling)
68. Certified Restorer (American Society of Cleaning and Restoration)
69. CH and Real
70. Chain Reaction
71. Challenge Rating (gaming)
72. Challenge-Response
73. Challenge-response spam filtering
74. Championship Record (sports)
75. Chance of Error
76. Change request
77. Change Request
78. Channel Ready
79. Channel Reliability
80. Chapman RA
81. Chapter Reference
82. Character Repertoire
83. charge recombination
84. Charles River
85. Chart Recorders
86. Chart Rulership 
87. Check RECON
88. Chemokine receptor
89. Chicago Rawhide (manufacturer of oil and grease seals)
90. Chicken Run (movie)
91. Chief Ranger (National Park Service)
92. Chief Resident
93. Child Ready
94. Child Rider (insurance)
95. Chiltern Railways
96. China Railway
97. China Railway
98. China RECALLED
99. Chloroprene Rubber
100. Choir Room
101. Chongryon
102. Choose Responsibility
103. Chris Reed
104. Chris Roberts (game developer)
105. Chris Rock
106. Chris Rodgers
107. Christen RD
108. Christianity Revealed (website/group)
109. Christina Ricci
110. Chromalloy Research
111. Chrome Required
112. Chromium
113. Chromium
114. chronic rejection
115. Church Record (genealogy)
116. Cibinic Report
117. circadian rhythm
118. Circuit Reliability
119. Cited in the Report
120. Cities Review
121. Citrine Rough
122. Civitas Romans (Latin: Roman City/Citizenship, epigraphy)
123. Claims Reference
124. Claims Representative
125. Clarification Report
126. Clarification Request
127. Clarification Requests
128. Class of Restriction (telephony)
129. Class Representative (in colleges of India)
130. Classroom
131. Clean Run
132. Cleaning Rod
133. Clear Record
134. Clear Round
135. Clearwater River
136. Client Registry
137. Clifton Ray
138. Clinical Research
139. Close Range
140. Close Ratio (gearbox staging)
141. close reconnaissance
142. Closed Reduction
143. CLOSED RUSSELL
144. Co Radiologist
145. Coast Research
146. Coaxial Resonator
147. Code Red
148. Code Release (software encryption)
149. CODE REPLY
150. Code Review
151. coefficient of repeatability
152. Cognitive radio
153. cognitive reserve
154. Cognitive robotics
155. Coherent Radar
156. COL Robert
157. Cold Regions
158. Cold Rolling
159. Colin and Rhoads
160. Colleen Rinard (Anahuac, TX)
161. College of Redwoods (Eureka, CA)
162. College of the Redwoods
163. College Republican
164. College Republicans
165. colonization resistance
166. Color Reader
167. Colorado Rockies
168. Colorado Rockies (NHL)
169. Columbia Records (record label)
170. Combat Rating (gaming)
171. Combat Readiness
172. Combat Ready
173. Combat Rescue
174. Combination Radio (SINCGARS)
175. Combined Ratio
176. Comfort Room (restroom)
177. Command Register
178. Comments Ratio (source code)
179. Commercial Registration (various locations)
180. Commissioner Rogers
181. Committee Radigan
182. Common Room
183. Commonwealth Record
184. Communication Research (journal)
185. Communication/Rendezvous (Plan, US DoD Flight Information Publication)
186. Communications Relay
187. Communications Room
188. Community of the Resurrection
189. Community of the Resurrection (religious order)
190. Community Radio
191. Community Relations
192. Compactness Ratio
193. Companies Registry (Hong Kong)
194. Company Report
195. Compare Register (IBM)
196. Competitive Range (government contracting)
197. complement receptor
198. complete regression
199. Complete remission
200. Complete Remission (oncology)
201. complete remission rate
202. complete responders
203. Complete Response
204. complete response rate
205. complete responses
206. Complete Rest
207. Compliance Rating
208. Composite Reflectivity (weather)
209. composite resin
210. Compression ratio
211. Compression Ratio
212. Compressor Refrigeration
213. Compte-Rendu (French)
214. Comptes rendus
215. computed radiographic
216. Computed radiography
217. Computed Radiography
218. Computed Radiology
219. Computed Relation
220. Computer Resources
221. Computer Room
222. Computing Resource
223. Computing Reviews (ACM)
224. Concentration ratio
225. concentration ratios
226. Concentration-Response (pharmacology)
227. concurrent review
228. condemnation rate
229. Condition Register
230. Condition Report
231. Condition Reporting
232. CONDITION REPORTS
233. Condition Resolution
234. Conditional Release
235. Conditional Requirement
236. conditioned reflex
237. conditioned reinforcement
238. Conditioned Reinforcer
239. Conditioned Response
240. conditioned reward
241. Conditions in RSS
242. conditions reports
243. Conductor (NYC Transit Authority)
244. Confederate River
245. Conference Report
246. Conference Room
247. Confidential Report
248. Configuration Review
249. Confirmation Review
250. Congregation of the Resurrection
251. Congregation of the Resurrection (religious order)
252. Congregation of the Rosarians
253. Congressional Relations
254. Connection Request
255. Conrail (railroad)
256. Conrail, US
257. Consciousness raising
258. Conservative Republican
259. conserved region
260. considered a rejection
261. consistency ratio
262. Consolidated Rail Corporation 
263. Consolidated Rail Corporation
264. Consolidated Requisition
265. Consolidated Revenue
266. Constant Resistance
267. constant routine
268. Constellation Rotating (matrix type)
269. Constructed Response (test type item)
270. Construction Reconstruction
271. Constructionman Recruit (US Navy paygrade E-2, SEABEES)
272. Consumer Relations
273. Consumer Reports
274. Consumer Reports
275. Consumer Rights
276. Consumption Rates
277. Consumption Report
278. Content Reserve
279. Contingency Retention
280. Continue Re
281. Continuing resolution
282. Continuing Resolution
283. Continuing Resolutions
284. Continuous Radon Monitoring
285. Continuous Replenishment
286. Contract Renewal(s)
287. Contract Reports
288. contractile reserve
289. Contractor Report
290. Contractor Reports
291. Contract-Relax (PNF technique)
292. Contracts Report
293. Contributed Report
294. Control and Reporting
295. control rats
296. control region
297. Control Relay
298. Control Reverse
299. Control Rod
300. Control Room
301. Controlled Release (prescription drugs)
302. Controlled/continuous release
303. controlled-release
304. conventional radiology
305. Conversion rate
306. Conversion Ratio
307. Converter Regulator
308. Coolant Replacement
309. Copper Range Railroad
310. Copyright
311. Copyright Regulations
312. Coral Sea Islands
313. Corner Reflector
314. coronary resistance
315. coronary revascularization
316. coronary risk
317. Coronet Rd
318. Corp Regional
319. Corpo Reticolare (Reticular Body of Chlamydia)
320. Corporate Real
321. Corporate Repository
322. Corporate Responsibility
323. Corporate social responsibility
324. Corporation Register
325. Corpse Retrieval (roleplaying games)
326. Corpse Run (gaming)
327. Correct Reconfiguration
328. correct rejection
329. Correction Record
330. Correctly Recognized
331. Correlation Radiometer
332. Correlation Radiometry
333. Correlation RP
334. Corrientes (Argentina Province, airline code)
335. Corrosion Rate
336. cortical reaction
337. corticosteroid-resistant
338. Cosmic Ray
339. Cosmic Rift (game)
340. Cosmonaut Researcher
341. Cost Recovery
342. Cost Reimbursable (contract type)
343. Cost Reimbursement
344. Cost Research
345. Costa Rica
346. Costa Rica
347. Council Rock High School (Bucks County, PA)
348. Councillor (title)
349. Count Reverse
350. Counter Robotics
351. Counter Rotation
352. Country Representative
353. Country Road (various locations)
354. County highway
355. County Road/Route
356. Course Reader
357. Court Reporter
358. COVER REPORT
359. Coverage Reference
360. CR gas
361. CR postcode area 
362. Crampon Pacific Flight Covers Handbook (philatelic handbook)
363. Crawford County, Kansas
364. Cray Research
365. Crease (stamp and paper money collecting)
366. Creatine
367. Creatinine
368. Credit
369. Credit Rating
370. Credit Record
371. Credit Report
372. Cree language
373. Creek
374. Cremona, Lombardia (Italian province)
375. Cristiano Ronaldo
376. Cristiano Ronaldo (footballer)
377. Critical Rate
378. Critical Ratio (operations management)
379. Critical reading
380. Critical Resistance
381. Critical Review (disambiguation)
382. Critically Endangered (IUCN Red List of Threatened Species category)
383. Critically endangered species
384. Critique Report
385. Crore
386. Cross Range
387. Crossing Restrictions
388. Crosswind
389. Crotch Rocket (motorcycle slang)
390. Crown Royal
391. Crown Royal (whiskey)
392. Croydon (postcode, United Kingdom)
393. Cruise (aircraft flight condition)
394. Cruise Control (automotive)
395. Cryptography Research, Inc
396. Crystal Reports
397. Cubist Records (record label)
398. Cuddihy RI
399. Cultural Revolution
400. Cummins Racing
401. Curl Retention
402. Current Rate
403. Current Relay
404. Current Resources
405. Currentis (Latin: current month or year)
406. Cusp Region
407. Custom Reports
408. Customer Ready
409. Customer Relations
410. Customer Relationship
411. Customer Requirement
412. Customer Response
413. Customs Regulations
414. Custos Rotulorum (Latin: Keeper of the Rolls)
415. Cyclotron Rd
416. Cylinder/Condemnation Rate
417. Cynthia Rowley (fashion)Czech Radio
418. Czech Republic
419. Czech Republic