CS

1. 0-Chlorobenzylmalononitrile (tear gas)
2. 2-chlorobenzylidene malonitrile
3. 2-chlorobenzylidene malononitrile
4. Adobe Creative Suite
5. C Schosser
6. C Sharp (File Name Extension)
7. Cabin Systems
8. CABINET SMALL
9. Cable select
10. Cable Services
11. Cable Ship
12. Cadbury Schweppes
13. Caesarean Section
14. Caesarian Section
15. Caesium 
16. Cafe Skeptique (Canada)
17. Cage Shield
18. Cait Sith (Final Fantasy VII character)
19. Calcasieu Sabine
20. CALCIUM SIGNALLING
21. Calendar Student
22. calf serum
23. Calibration System
24. California Special (automobile)
25. Call Server
26. Call Sign (military)
27. Camo Series
28. campaniform sensilla
29. Campestre School (El Paso, TX)
30. Campus Safety (various locations)
31. Campus Solutions (software)
32. Canadian South
33. Candidate Selection
34. Candidate Specification (GS1)
35. Cannon Street station
36. Capability Set
37. Capita Symonds Ltd (UK)
38. Capital Strategies (various locations)
39. Captain Scarlet
40. Captain Skyhawk (video game)
41. Captor Sakura
42. Cara Spinning
43. Carbon Steel
44. Carbon Sulfur
45. Card Services (PCMCIA cards)
46. cardiac surgery
47. Cardiogenic Shock (cardiopulmonary resuscitation)
48. Carlo Sequin
49. carotid stenting
50. Carpenter Stanley
51. Carrier Shim
52. carrier suppressed
53. Carsten Schuermann
54. Cascade Steel
55. Case Sensitive
56. Case Series
57. Case Short
58. Case Student
59. Case(s)
60. Cast Steel
61. Castle Sauvage (game)
62. Castle Systems
63. Cat Show
64. Catalog Sea
65. Catalog SS
66. Catalog Subject
67. Category Sector
68. Cauchy Sequence
69. Caught stealing
70. Caught Stealing (Baseball)
71. Caulk and Seal
72. Caustic Scrubber
73. Caval Syndrome (canine heartworm)
74. cavernous sinus
75. CB Steakley
76. CDF (Cumulative Distribution Function)-Based Scheduling Algorithm
77. Celebrity Shop
78. celiac sprue
79. cell saver
80. Cell Separators
81. Cell Station (radio basestation in PHS)
82. Cello Suites
83. Center and School
84. Center in South
85. Center School (Knoxville, TN)
86. Center Senior
87. center stack
88. Center Stage
89. Center Stennis
90. Centi Stokes
91. Central School (Hartford, WI)
92. Central Services (Topeka, KS)
93. Central Shops
94. Central Station
95. central sulcus
96. Centro de Salud (Health Centre)
97. CERT/CC Summary
98. Certificate Server (computer security)
99. Certification Section
100. Certification Survey
101. Certified Senior
102. Certified Sommelier (wine)
103. Certified Specialist
104. Cerulean Studios LLC
105. cervical spondylosis
106. cervical stimulation
107. Cesarean sections
108. Cesium
109. Cesium
110. CH Simpson
111. Chad Smith (Red Hot Chili Peppers band member)
112. Challenge Stradale (Ferrari)
113. Challenger School (Huntsville, AL)
114. Challenger School (Pasadena, TX)
115. Chameleon Systems
116. Championship Subdivision (football)
117. Change Status
118. Changes in Soil
119. Channel Selector
120. Channel Shuffling (mobile communications)
121. Channel Simulation
122. Channel Spacing
123. Channel Status
124. ChanServ
125. ChanServ (IRC Channel Server)
126. Chaplain Service (Air Force; US DoD)
127. Chapman School (Huntsville, AL)
128. Chappelle's Show (Comedy Central TV show)
129. charge separation
130. Charles Schwab & Co
131. Cheap Sox (Tufts University Improvisational Comedy Troupe)
132. Cheating System (gaming)
133. Check Solutions
134. Check Sorter
135. Check Sum
136. Checkout Station
137. Chee Siong
138. Cheesy Smile
139. Chemical and Structural
140. Chemical Seals
141. Chemical Separation
142. Chemical Spill
143. chemical spray
144. Chemical Stockpile
145. Chemical Synthesis
146. Chemical/Cold Storage
147. Chest Strap
148. Chevalier School (Philippines)
149. Chia Seeds
150. Chicano Studies
151. Chicken Smoothie (game)
152. Chief of Staff
153. Chief Scientists
154. Chief Secretary (for Administration; Hong Kong)
155. Chief Secretary (Hong Kong)
156. Chief Special
157. Chief Steward (various organizations)
158. Child Small
159. Child Support
160. Child Survival
161. Children Staff
162. Chile South
163. Chili Seasoning
164. Chinese Spring
165. Chinese Studies
166. Chinook Salmon
167. Chip select
168. Chip Select
169. CHIP SELECTS
170. Chlorinated Solvents
171. Choice Servers
172. cholesterol sulfate
173. Chondroid Syringoma (tumor)
174. Chondroitin Sulfate
175. chondroitin sulphate
176. chorionic somatomammotropin
177. Christian Saints
178. Christian Science
179. Christian Social Party (Austria)
180. Christian Surfers
181. Christopher Smith
182. chromogenic substrate
183. chromosome substitution
184. chronic sinusitis
185. Chronicon Scotorum
186. cigarette smoke
187. cigarette smoking
188. Circle Surround (5.1 surround sound by SRS Labs)
189. Circuit Schematic
190. Circuit Switch
191. circumsporozoite protein
192. Cirrostratus
193. Cirrostratus (cloud formation)
194. Citrate Synthase
195. citrate synthetase
196. City the Summer
197. Civil Servant
198. Civil Service
199. Civil Structures
200. Civil Support
201. Civilization Site
202. CJ Stevenson
203. Clad Steel
204. Clairvoyant Scheme
205. Clamp School
206. Clan Stammkneipe
207. Clark Solutions
208. Class Society
209. Classes Support
210. Classified Sensitive
211. Classroom Science
212. Clean Sheet (English soccer; goalie stat)
213. Clean Simple
214. Clear Screen (Hyper Logo Turtle graphics command)
215. Clemett SJ
216. Cleveland Steamer
217. ClickServ
218. Client Server
219. Client Supply
220. Client System(s)
221. Climate Services
222. clinical score
223. Clinical Signs
224. clinical stage
225. clinical supervision
226. Clinical Supervisor
227. Cliometric Society
228. Clip System (Nerf)
229. Clive Staples (C.S. Lewis)
230. Clock Simulation
231. Clogged Stream
232. Close Shot (cinematography)
233. Close Support
234. Closed Satellite
235. Closed Session
236. Closed Star
237. Club Seminar
238. Club Sport
239. Clubsport (Porsche model)
240. CMI System
241. Coast Survey
242. Coastal Station (US DoD)
243. Coax System
244. Cobalt Scar (Everquest)
245. CobrA Server
246. Cobra Starship (band)
247. Cockayne Syndrome
248. Cocker Spaniel
249. Code Segment
250. Code Strip
251. Coded Switch
252. Cody Simpson (musician)
253. Coefficient de Structure (French: Factor Structure)
254. Coffee Shop
255. Cognitive Science
256. Cogswell St
257. Coherent States
258. Cohort Study
259. Coil Strap
260. Cold Skill (gaming, Diablo II)
261. Cold Start
262. cold stress
263. Collaborating Scientists
264. Collaborative Statement
265. Collections Schedule
266. Collective Soul (band)
267. College Station (Texas)
268. Collegiate School (Richmond, VA)
269. Colloquium Stanford
270. Colonne Sèche (French: Dry Column; firefighting device)
271. Color Samples
272. Color Slides
273. Colorado and Southern Railway
274. Colorado Southern Railway Company
275. Colorado Springs
276. Column Sort
277. Column Space (mathematics)
278. Combat Sent
279. Combat Skill (gaming, Diablo II)
280. Combat Support
281. Combat Surveillance
282. Combat System
283. Combined Section
284. Combined Shear
285. Comfort Suites (hotel)
286. Coming Soon
287. Comma Splice
288. Command Station
289. Commander Special
290. Comments String
291. Commercial Satellite
292. Commercial Service (US Department of Commerce)
293. Commercial Standard
294. Commercial Standards
295. Commissaryman (USN Rating)
296. Commission on Schools
297. Committee Specification
298. Committee Substitute
299. Common Set
300. Common Software
301. Common Source (amplifier topology)
302. Common Stock
303. Common Systems
304. Commonwealth Scientific
305. Communication and Systems
306. Communication Scheduler
307. Communication Server (back-end network terminology)
308. Communication Social
309. Communications Section
310. Communications Security
311. Communications Segment
312. Communications Services
313. Communications Software
314. Communications Squadron
315. Communications Subsystem
316. Communications Support
317. Communications System
318. Community Server
319. Community Servers
320. Community Service
321. Como Siempre (as always)
322. Compact Scales
323. Company Secretary
324. Compartment Syndrome
325. Competition Sensitive
326. Competitive Sourcing
327. Competitive Strategies
328. Competitive-Sensitive
329. Compilers Spring
330. Complete Sharing
331. completed stroke
332. Completely Sterile
333. Completions Supervisor
334. complex spike
335. Compliance Specialist
336. Compliance Staff
337. Compliance Subcommittee
338. Component Supplier
339. Composite Scores
340. Composite Service
341. Compound Semi
342. Compressed Sensing
343. compressive strength
344. Compressor Subassembly
345. CompuServe
346. Computer science
347. Computer Services
348. Computer Society
349. Computer Software
350. Computer Station
351. Computer Stereo
352. Computer Studies
353. Computer Subsystem
354. Computer Tailored Smoking
355. Computers and Security (International Federation of Information Processing journal)
356. Computers In Society
357. Computing Science
358. Computing Services
359. Computing Spring
360. Computing Statistical
361. Conceptual Structures
362. Concurrent Session (various organizations)
363. conditional stimuli
364. conditioned stimuli
365. Conditioned Stimulus (psychology/psychiatry)
366. conditioning stimulation
367. Conduct Sheet
368. Conducted Susceptibility
369. Confederate States of America,
370. Conferences and Special
371. Confidential Source
372. Configs Scripting
373. Configuration Services
374. Confined Space
375. Confirmation Study
376. Confirmed Site
377. Conformance Statement
378. Conformance to Standards
379. Congenital Syphilis
380. Congregation of the Missionaries of St. Charles
381. Congregation Secretary (Jehovah's Witnesses)
382. Consadole Sapporo (Japanase sports club)
383. conscious sedation
384. Conseil Scientifique (French: Scientific Council)
385. Conseiller a la Sécurité (French: Security Advisor)
386. conservative surgery
387. Consigne de Sécurité (French: Security Deposit)
388. Constant Service
389. Constant Source
390. Constraint Set
391. Construction or Substantial
392. Construction Site
393. Construction Specialist
394. Consulting Services (various companies)
395. Consulting Specializes
396. Consumables Status
397. Consumer Service
398. Consumer's Surplus (economics)
399. contact sensitivity
400. Containment Safety/Spray
401. Containment Spray
402. Containment Substation Bus (electrical)
403. CONTAINMENT SUMP
404. Contaminated Sediments
405. Contaminated Sites
406. Contamination Survey
407. Contamination Survivability
408. Content Software GmbH
409. Content Staging
410. Contention Slots
411. Contents Survey
412. Context Switch
413. Continuous Screening
414. Continuous Spectrum
415. Contract Services
416. Contract Specialist
417. Contracting Specialist (USACE)
418. Contractor Share
419. Contractor Support
420. Contractual Specification
421. contrast sensitivity
422. Contribution Series
423. Contributions in Science
424. Contributory Support
425. Control Section
426. Control Segment
427. Control Set
428. Control Signalling
429. Control Simulation
430. Control Station (US Army)
431. Control Store
432. Control Strobe (logic signal, electronics)
433. control subjects
434. Control Sublayer
435. Control Subsystem
436. Control Synthesizer (Yamaha)
437. Control System
438. Controllability Set
439. Controlled Space (US DoD)
440. Controlled Substance
441. Convenience Sampling
442. Convenience Store
443. conventional smear
444. Convergence Sublayer
445. Convergence Sublayer (ATM)
446. Conway Stewart (pens; UK)
447. Coolant Sampling
448. Cooling System
449. Coordinate System
450. Coordinateur Sécurité (French: Safety Coordinator)
451. Coordination Sud
452. Copenhagen Suborbitals
453. Copper Sulfate
454. Corbascript (File Extension)
455. Cordyceps sinensis
456. Core Science
457. Core Segment
458. Core Spray (Nuclear Power)
459. Core Systems
460. Corgi Showcase
461. Cork Screw
462. corn silage
463. corn-soybean meal
464. corn-soybean meal diet
465. Coronado Springs (Disney Resort)
466. coronal scaling
467. Coronary Sinus (medical)
468. coronary stenosis
469. Coronation Street (British soap opera)
470. corp sheet
471. Corporate Sources
472. Corporate Strategies
473. Corporate Structure
474. CORPORATION SAW
475. Corporation September
476. Corps Support
477. corpus striatum
478. corpuscles of Stannius
479. Corrugated Services, Inc (Forney, Texas)
480. Corticosteroids
481. Corticosteroids
482. corticosteroid-sensitive
483. Cosenza (Italy)
484. Cost Sharing
485. Cost Summary
486. Costa Rica
487. CouchSurfing
488. CouchSurfing
489. Counter Sniper
490. Counter Strike
491. counterattacked but was scattered
492. Countersabotage
493. Counter-scanning
494. Counterstrain
495. Counter-Strike (game)
496. County Seat
497. Coupled states
498. Courant-Snyder (parameters)
499. Course Secretary
500. Courses in Spring
501. Covert Storage
502. Cowden syndrome
503. CPL i Spanien
504. Cracked Software
505. Crazy Safari (movie)
506. Creative Solutions (software)
507. Creative Suite (Adobe)
508. Credit Suisse
509. Credit Suisse's
510. Creep Score (gaming)
511. Creeping Line Single-Unit (US DoD)
512. Crescat Sententia
513. Crescent School (Toronto, Ontario, Canada)
514. Crew Shirt
515. Crew Simulator
516. Crew Station
517. Crew Systems
518. Crimson Skies (video game)
519. Criteria Selection
520. Critica Storica
521. Critical Section
522. Critical Source (US DoD)
523. Critical Systems
524. Criticality Safety (nuclear)
525. Critically Sensitive
526. cromolyn sodium
527. Cropping System (agriculture)
528. Cropping Systems
529. Cross Section
530. cross spectra
531. Cruiser Squadron (US Navy)
532. Cryospheric System
533. Crystal Space (open source 3d Engine)
534. Crystal Square (Crystal City, Arlington, VA)
535. CS gas
536. CS register
537. Cub Scouts
538. Cued Speech
539. Culinary Specialist (navy rating)
540. Cultural Studies
541. Cultural Survival
542. culture supernatant
543. Cum Suis (Latin: and associates)
544. Cup Souffle
545. Curbside (vehicle design)
546. Current Segment
547. Current Series
548. Current Sheet (astronomy)
549. current smokers
550. Current Strength
551. Curve to Spiral
552. Cushing's Syndrome
553. Custom Scenery (aka Custom Scenery Object; also seen as CSO; Atari)
554. Custom Series
555. Customer Satisfaction
556. Customer Service
557. Customer Support
558. Cut Sheet
559. Cut Spelling
560. Cyber Sex
561. Cyberstorm (game)
562. Cycle Sport
563. Cycles Shift
564. cysteine synthase
565. Czech language
566. Czech Statistical
567. Czechoslovakia
568. Hb Constant Spring
569. Hungarian cs
570. Missionaries of St. Charles, Scalabrinians (religious order)
571. O-chlorobenzylidene malononitrile
572. plasma corticosterone
573. Plasmodium falciparum circumsporozoite
574. Superconducting Cyclotron
575. superior colliculus