Meaning & use
SST
Last updated
An aircraft designed to travel faster than the speed of sound, especially one built for commercial passenger transport.
See it in a sentence
The Concorde remains the most famous SST ever put into commercial service.
Engineers are researching a new generation of quieter SSTs.
A note on using this word
Short for 'supersonic transport'; commercial SST service largely ended when the Concorde was retired in 2003.
Words with a similar meaning
supersonic transportsupersonic jet
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