| Subject | English | Thesaurus |
| abbr., law | A.C.L.U. | American Civil Liberties Union |
| abbr., law | C.L.U. | Chartered Life Underwriter |
| abbr., f.trade. | I.U.C. | Intemational Union of Chemistry |
| abbr., law | P.U.C. | public utility commission |
| abbr., law | U.C.C.C. | Uniform Consumer Credit Code |
| abbr., law | U.C.C.J.A. | Uniform Child Custody Jurisdiction Act |
| abbr., law | U.C.M.J. | Uniform Code of Military Justice |
| abbr., law | U.C.R. | Uniform Crime Reports |
| abbr., f.trade. | U.S.A.E.C. | United States Atomic Energy Commission |