| Subject | English | Thesaurus |
| AI. | AI code generation model | artificial intelligence code generation model (Alex_Odeychuk) |
| abbr., transp. | Australian Code for the Transport of Dangerous Goods by Road and Rail | ADG (Палачах) |
| abbr., tech. | CHDB code | Compatible Higher Density Bipolar |
| abbr., file.ext. | Clarion for Windows Application Code in Text Format | TXD |
| abbr., O&G, sakh. | 30 Code of Federal Regulations Part 250 | 30 CFR 250 |
| abbr. | constituent code | cc (Alex Lilo) |
| avia. | discrete code | A four-digit SSR Code with the last two digits not being '00'. |
| abbr., telecom. | Facility Interface Code | FIC (t_edelweis) |
| IT, abbr. | Government Code and Cipher School | GCCS (UK, Mil.) |
| IT, abbr. | Government Code and Cipher School | GC&CS (UK, Mil.) |
| comp., net., abbr. | Hashed Message Authentication Code | HMAC |
| abbr., tech. | HDB code | high density bipolar code |
| abbr., tech. | HDB3-code | high density bipolar code |
| abbr., O&G, sakh. | Institute of Petroleum Model Code of Safe Practical, Part 15, March 1990 | IP 15 |
| abbr. | International Ship and Port Facility Security Code | ISPS Code (http://en.wikipedia.org/wiki/International_Ship_and_Port_Facility_Security_Code ABelonogov) |
| abbr., law | International Ship and Port Facility Security Code | ISPS Code (International Ship and Port Facility Security (ISPS) Code Leonid Dzhepko) |
| abbr., nautic. | International Ship and Port Facility Security Code | ISPS (S. Manyakin) |
| IT, abbr. | Message Authentication Code | MAC (SSL, SRT, Verschluesselung) |
| cryptogr. | message authentication code | MAC (ssn) |
| IT | message authentication code | An American National Standards Institute (ANSI) standard checksum that is computed using Data Encryption Standard (DES) |
| abbr., file.ext. | Message Authentication Code | MAC |
| abbr., comp., MS | Message Authentication Code An algorithm that allows a receiver to ensure that a block of data has retained its integrity from the time it was sent until the time it was received | MAC (메시지 인증 코드) |
| cryptogr. | message authentication code value | MAC value (ssn) |
| comp., abbr. | Message Digest Code | MDC |
| IT, abbr. | Message Integrity Check / Code | MIC |
| abbr. | Model code of safe practice Part 15: The Area classification code for installations handling flammable fluids | IP15 (EI 15, formerly referred to as IP 15 Alexander Demidov) |
| abbr., nucl.phys. | Monte Carlo N-Particle Transport Code | MCNP software (MichaelBurov) |
| abbr., nucl.phys. | Monte Carlo N-Particle Transport Code | MCNP (MichaelBurov) |
| abbr., mil., WMD | New Jersey Administrative Code | NJAC |
| abbr., logist. | Part Name Code | PNC (gorbulenko) |
| abbr., comp. | Programmer Access Code | PAC (Vosoni) |
| ocean., abbr. | Regional Atmospheric Transport Code for Hanford Emission Tracking | RATCHET |
| IT, abbr. | Rivest Cipher / Ron's Code 2 | RC2 (Verschluesselung) |
| law | Va.Code Ann. | Code of Virginia Annotated |
| abbr., post | VIdeo-COdeer MAchine | VICOMA (Netherlands, video coding systems) |
| mil., abbr. | Work Accomplishment Code | WAC |