| Subject | English | Thesaurus |
| tradem., abbr. | Alcohol & Drug Testing Services, L. L. C. | ADTS |
| AMEX., abbr. | B L C Financial Services, Inc. | BCL |
| NYSE., abbr. | C. B. Richard Ellis Services, Inc. | CBG |
| Nasdaq, abbr. | C C C Information Services Group, Inc. | CCCG |
| abbr. | c.，cd. | candlepower |
| abbr. | 4C-CD | Capital District Child Care Coordinating Council |
| abbr., microel. | C⁴D | conductively connected CCD (Ladungstransfertechnik) |
| AMEX., abbr. | C E T Environmental Services, Inc. | ENV |
| abbr., commun. | C/I | carrier /interference ratio |
| abbr., microel. | C³L | complementary constant-current logic |
| abbr., commun. | C/N | carrier/noise ratio |
| abbr., microel. | C³RAM | continuously charge-coupled random-access memory |
| railw., abbr. | E C S T Container Services and Trading, GmBH | NABU |
| med. | hepatitis C virus HCV infection | Infection with the hepatitis C virus (HCV). HCV is usually transmitted through blood and rarely through other body fluids, such as semen. HCV infection progresses more rapidly in people coinfected with HIV than in people infected with HCV alone. |
| abbr., med.appl. | I.C.R.P. | International Commission on Radiological Protection |
| energ.ind. | I&C Shop | thermal instrumentation and control shop (Kastorka) |
| railw., abbr. | M R C Rail Services, L. L. P. | MIDX |
| abbr., microel. | p.c.b. | printed circuit board |
| railw., abbr. | Pacer Rail Services L. L. C. | PCRX |
| abbr., oil | SE/C | southeast corner |
| tradem., abbr. | United Government Services, L. L. C. | UGS |
| physiol., abbr. | Virus De La Hepatitis C | VHC |
