Similar words: of sound mind, at a speed of, speed of light, freedom of speech, ground speed, speedometer, sound off, a sound mind in a sound body.
31. If you go much faster, the center of lift moves back on the wing, pushing the nose down and increasing velocity, until you soon approach the speed of sound.
More similar words: of sound mind, at a speed of, speed of light, freedom of speech, ground speed, speedometer, sound off, a sound mind in a sound body, teed off, speed, in need of, part of speech, speed up, speedy, speeder, speedway, speeded, deed of gift, figure of speech, top speed, godspeed, speedily, speeding, deed of trust, fast-speed, speed bump, speedboat, high-speed, full speed, speed limit.