subsonic
adjective
sub·son·ic
ˌsəb-ˈsä-nik 
1
: of, relating to, or being a speed less than that of sound in air
2
: moving, capable of moving, or utilizing air currents moving at a subsonic speed
Examples of subsonic in a Sentence
Recent Examples on the Web
The commercial Overture airliners will be able to carry 64 to 80 passengers at Mach 1.7, about twice the speed of today’s subsonic airliners, meaning a flight could cross the Atlantic in just about 3 1/2 hours.
—
Mary Walrath-Holdridge, USA TODAY, 29 Jan. 2025
Boom’s plan is that Overture will be in operation before the end of the decade, carrying 64 to 80 passengers at Mach 1.7, about twice the speed of today’s subsonic airliners.
—Cnn.com Wire Service, The Mercury News, 28 Jan. 2025
Existing subsonic airliners fly at between 550 and 600 miles per hour, according to charter company Bitlux.
—Kerry Breen, CBS News, 28 Jan. 2025
However, the promise is still there, with the possibility of us one day seeing as many supersonic commercial transports on intercontinental routes as their subsonic counterparts, and some companies like Boom are keen to get in on the ground floor.
—David Szondy, New Atlas, 27 Jan. 2025
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Mary Walrath-Holdridge, USA TODAY, 29 Jan. 2025
Boom’s plan is that Overture will be in operation before the end of the decade, carrying 64 to 80 passengers at Mach 1.7, about twice the speed of today’s subsonic airliners.
—Cnn.com Wire Service, The Mercury News, 28 Jan. 2025
Existing subsonic airliners fly at between 550 and 600 miles per hour, according to charter company Bitlux.
—Kerry Breen, CBS News, 28 Jan. 2025
However, the promise is still there, with the possibility of us one day seeing as many supersonic commercial transports on intercontinental routes as their subsonic counterparts, and some companies like Boom are keen to get in on the ground floor.
—David Szondy, New Atlas, 27 Jan. 2025
See all Example Sentences for subsonic
Dictionary Entries Near subsonic
Cite this Entry
“Subsonic.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/subsonic. Accessed 12 Feb. 2025.
Copy CitationKids Definition
subsonic
adjective
sub·son·ic
ˌsəb-ˈsän-ik
ˈsəb-
1
: of, relating to, or being a speed less than that of sound in air
2
: moving, capable of moving, or using air currents moving at a subsonic speed
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