| Subject | English | Thesaurus |
| mil., abbr. | Communications Message Processor | CMP |
| IT, abbr. | Facility Interface Processor | FIP |
| mil., abbr. | Front End Message Processors | FEMP |
| abbr., file.ext. | Information/Interface Message Processor | IMP |
| mil., abbr. | Input Message Processor | IMP |
| mil., abbr. | Intelligence Message Processor | IMP |
| abbr. | Interface Message Processor | IMP (ARPANET/MILNET) |
| el., abbr. | Interface Message Processor | IMP |
| IT, abbr. | Interface Message Processor | IMP (ARPANET/MILNET, replaced by PSN) |
| telecom., abbr. | Interface Message Processor | IMP (ARPANET) |
| IT, abbr. | Interface Message Processors | IMP (ARPANET, MILNET) |
| telecom., abbr. | Interface Message Processors | IMP |
| IT, abbr. | Message Conversion System Message Processor | MCSMP (MCS) |
| abbr., IT | Message Driven Processor | MDP |
| mil., abbr. | Message Input Processor | MIP |
| abbr., scottish | Sperry Computer Aided Message Processor | SCAMP (UK) |
| abbr., astronaut., mil. | Terminal Interface message Processor | TIP |
| mil., abbr. | Terminal Message Processor | TMP |