| Subject | English | Thesaurus |
| abbr., law | A.P.C. | Alien Property Custodian |
| abbr., f.trade. | B.P.C. | British Pharmaceutical Codex |
| tradem., abbr. | Mark B. Stumer & Associates, P. C. | MBSA |
| abbr., law | P.C | price current |
| abbr., f.trade. | p.c. | per-cent |
| abbr., insur. | p.c | per centum |
| abbr., law | P.C. | privy councilor |
| abbr., textile | P-C | a blended fabric of polyester and cotton fibers |
| abbr., jewl. | p.c. | per-carat |
| abbr., f.trade. | P.C.B. | printed-circuit-board |