SST

noun

ˌes-ˌes-ˈtē

: supersonic transport

Word History

Etymology

supersonic transport

First Known Use

1961, in the meaning defined above

Time Traveler

The first known use of SST was in 1961

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SSS

SST

S star

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Style

“SST.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/SST. Accessed 4 Mar. 2025.

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Kids Definition

SST

noun

ˌes-(ˌ)es-ˈtē

: an airplane used to transport people and goods at supersonic speeds

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SST

noun

Word History

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Cite this Entry

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