| NB: The definitions below are for words, or technical vocabulary, specific to Military Air Environment use. |
| Where a word appears in the Oxford English Dictionary (OED), the definition below is specific only to the |
| associated context and OED definitions should be used in all other usages. |
| Term | Abbreviation | Chapter Reference |
| SpareZZZ | SpareZZZ |
| Description |
| Spare: zzzz. Was Designer. Incorporated in updated Design Organisation definition in Oct 08. Key 6 |