| Acronym | Meaning |
| DEFCON | Defence Readiness Condition |
| YS | Yoctosecond |
| NIO | Nicaraguayan Cordoba Oro (ISO 4217 Currency Code) |
| MMR | Measles |
| HBT | Heterojunction Bipolar Transistor |
| DRAM | Dynamic Random Access Memory (dee-ram) (computing) |
| CORBA | Common Object Request Broker Architecture |
| SART | Situational Awareness Rating Technique |
| CMM | Capability Maturity Model |
| NZC | New Zealand Cricket |