| Subject | English | Thesaurus |
| abbr., auto. | D+R C | valve for direct and reverse clutch |
| abbr., f.trade. | f.r. & c.c. | free of riots and civil commotion |
| med. | F.R.C.Path | Fellow of the Royal College of Pathologists (Rive) |
| abbr., f.trade. | f.c.s.r.c.c. | free of capture, seizures, riots and civil commotions |
| abbr., law | I.R.C | Internal Revenue Code |
| abbr., f.trade. | R.C. | revolving credit |
| abbr., auto. | R/C | reverse clutch |
| abbr., textile | R/C | Reclassed by Co, |
| abbr., f.trade. | S.R.C.C | strikes, riots and civil commotions |
| abbr., busin. | S.R.&.C.C. | strikes, riots and civil commotions |
| abbr., law | S.R.C.C.R. | Strikes, riots and civil commotion risks |
| abbr., law | S.R.C.C.R | strikes, riots and civil commotion risks |
| abbr., f.trade. | W.R. & S.R. & C.C. | war risk and strikes, riots, and civil commotion (insurance) |