| 100% | EXOCET | 6 | Anti-ship missile that skims waves at nearly the speed of sound |
| 38% | SONIC | 5 | "Service at the Speed of Sound" fast-food franchise |
| 38% | SONIC | 5 | "Service at the Speed of Sound" fast-food chain |
| 37% | EXOCET | 6 | French anti-ship missile that travels at a very low altitude at high subsonic speed |
| 36% | MACHONE | 7 | The speed of sound |
| 36% | MACHI | 5 | The speed of sound |
| 35% | SUBSONIC | 8 | Below the speed of sound |
| 35% | MACH2 | 5 | Double the speed of sound |
| 34% | SUPERSONIC | 10 | Faster than the speed of sound |
| 34% | TRANSONIC | 9 | Moving close to the speed of sound |
| 33% | MACH | 4 | It's calculated relative to the speed of sound |
| 33% | CHUCKYEAGER | 11 | First pilot to travel faster than the speed of sound |
| 33% | SONICBOOM | 9 | Noise from a plane flying above the speed of sound |
| 32% | MACH | 4 | Physicist Ernst whose name is associated with the speed of sound |
| 32% | QUEUE | 5 | Waiting line at the DMV... or a word that sounds like the first letter of 25a |
| 32% | SONICBOOM | 9 | What you hear when a plane breaks the speed of sound: 2 wds. |
| 31% | LINER | 5 | "Queen Mary 2," now docked at Southampton, is the last operating ship that was originally one of these |
| 31% | PHOTON | 6 | Quantum of electromagnetic radiation that travels at the speed of light |
| 30% | SUPERSONIC | 10 | In excess of the speed of sound |
| 30% | MACH | 4 | ___ 1 (the speed of sound) |
| 30% | MACH | 4 | __ 1 (the speed of sound) |
| 30% | SYLLABLES | 9 | The units of sound that words are broken up into |
| 30% | SKATER | 6 | Pond __, insect that skims the surface of water |
| 30% | RAYS | 4 | Travelers at the speed of light |
| 30% | DART | 4 | Pub missile that's also a synonym of speed |
| 30% | APOCOPE | 7 | Loss of sounds at the end of a word |
| 30% | BAABAA | 6 | Couple of sounds often heard at the shearing shed |
| 29% | SILENCE | 7 | The pleasing sound of nothing at all |
| 29% | RAP | 3 | Sound of a knock at the door |
| 29% | GEE | 3 | Sound of the letter that follows "eff" |