Subsonic

"Subsonic" in a Sentence (2 examples)

The noise of the ship was all around her. The faint subsonic rumble of the reactor and drive. (Leviathan Wakes, James S. A. Corey)

But British Airways Flight 112 made the trek in under five hours, setting a new record for the fastest subsonic commercial flight across the Atlantic Ocean.

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Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.