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Meaning of indefinite call sign | Babel Free

Noun CEFR C1

Definitions

A call sign which does not represent a specific facility, command, authority, activity, or unit, but which may represent any one or any group of these.

CEFR level

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

indefinite integral indefinite pronoun indefinite verb Indefinitely Indefiniteness indefinitiveness

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