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Meaning of speedletter | Babel Free

Noun CEFR C1

Definitions

A kind of military communication that is delivered especially quickly, bypassing the usual delivery system, and does not employ electrical transmission.

historical

CEFR level

C1
Advanced
This word is part of the CEFR C1 vocabulary — advanced level.

See also

speedlight speedloader Speedo Speedometer Speedometers speedometry

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