| Synonyms | Length | Vowels | Syllables | |
|---|---|---|---|---|
| Ambit | 5 | 3 | 2 | 2 |
| Apogee | 6 | 2 | 4 | 3 |
| Ballistic Capsule | 17 | 11 | 6 | 5 |
| Booster | 7 | 4 | 3 | 2 |
| Booster Rocket | 14 | 9 | 5 | 4 |
| Booster Unit | 12 | 7 | 5 | 4 |
| Burn | 4 | 3 | 1 | 1 |
| Capsule | 7 | 4 | 3 | 2 |
| Compass | 7 | 5 | 2 | 2 |
| Debarkation | 11 | 6 | 5 | 4 |
| Deep Space Ship | 15 | 10 | 5 | 4 |
| Disembarkation | 14 | 8 | 6 | 5 |
| Disembarkment | 13 | 9 | 4 | 4 |
| Docking | 7 | 5 | 2 | 2 |
| Docking Maneuver | 16 | 10 | 6 | 5 |
| Dropping Anchor | 15 | 11 | 4 | 4 |
| Earth Insertion | 15 | 9 | 6 | 4 |
| Ferry Rocket | 12 | 9 | 3 | 4 |
| Fuel Ship | 9 | 6 | 3 | 2 |
| Going Ashore | 12 | 7 | 5 | 3 |
| Injection | 9 | 5 | 4 | 3 |
| Insertion | 9 | 5 | 4 | 3 |
| Introduction | 12 | 7 | 5 | 4 |
| Intromission | 12 | 7 | 5 | 4 |
| Landfall | 8 | 6 | 2 | 2 |
| Landing | 7 | 5 | 2 | 2 |
| LEM | 3 | 2 | 1 | 1 |
| Lumen | 5 | 3 | 2 | 2 |
| Lunar Excursion Module | 22 | 13 | 9 | 7 |
| Lunar Module | 12 | 7 | 5 | 4 |
| Manned Rocket | 13 | 9 | 4 | 4 |
| Module | 6 | 3 | 3 | 2 |
| Moon Ship | 9 | 6 | 3 | 2 |
| Moorage | 7 | 3 | 4 | 2 |
| Mooring | 7 | 4 | 3 | 2 |
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