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Meaning of TTSN | Babel Free

Noun CEFR B1

Definitions

Initialism of total time since new: the duration of time for which an aircraft has been in active use since its manufacture.

abbreviation, alt-of, initialism

CEFR level

B1

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

See also

TTT TTTE TTTS TTU Ttujur TTX