| Subject | English | Thesaurus |
| st.exch., abbr. | AT&T Corporation Adjusted Options | ZTQ |
| IT, abbr. | AT&T Global Network Services | AGNS (AT&T) |
| IT, abbr. | AT&T Netware Connect Services | ANCS (AT&T, Netware) |
| IT, abbr. | AT&T Novell Telephone Services | ANTS (AT&T, Novell) |
| IT, abbr. | AT&T Novell Telephone Services | A/NTS (AT&T, Novell) |
| abbr., insur. | Dispatch half demurrage at both ends | d 1/2 dbe |
| abbr., insur. | Dispatch half demurrage on working time saved at both ends | d.h.d.w.t.s.b.e. |
| avia., Canada | "Expect further clearance at..." | An expression used in radiocommunication to indicate the time at which it is expected that further clearance will be issued to an aircraft |
| abbr., post | In-Person Proofing at Post Offices Program | IPP (2004, identity confirmation for digital certificate) |
| USA | Office of Polar Programs at the National Science Foundation | OPP |
| USA | Program Management Course at DSMC | PMC |
| IT, abbr. | Supplementary Information REquest at the National Entry | SIRENE (SIS, EU) |
