| Subject | English | Thesaurus |
| abbr., law | A.F.D.C. | Aid to Families with Dependent Children |
| abbr., f.trade. | D/C | direct current |
| abbr., law | D.C. | district courts |
| abbr., textile | D&C brand | designer and character brand |
| abbr., textile | D&C Dyes | drugs and cosmetics dyes |