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Meaning of TSTO | Babel Free

Adjective CEFR B1

Definitions

Initialism of two-stage to orbit.

abbreviation, alt-of, initialism, not-comparable

CEFR level

B1

Intermediate
This word is part of the CEFR B1 vocabulary — intermediate level.

See also

tsunamic tsunamigenic tsunamilike tsundere Tsvetaevan TT