| Subject | English | Thesaurus |
| market. | AI agent segment | artificial intelligence agent segment (techcrunch.com Alex_Odeychuk) |
| avia. | final approach segment | That segment of an instrument approach procedure in which alignment and descent for landing are accomplished. |
| avia. | initial approach segment | That segment of an instrument approach procedure between the initial approach fix and the intermediate fix or, where applicable, the final approach fix or point. |
| avia. | intermediate approach segment | That segment of an instrument approach procedure between either the intermediate fix and the final approach fix or point, or between the end of a reversal, racetrack or dead reckoning track procedure and the final approach fix or point, as appropriate. |
| el., abbr. | MAterial Transport Segment | MATS |
| abbr., scottish | Message Input Segment | MIS |
| telecom., abbr. | Single Segment Message | SSM (DQDB, SMDS) |