indefinite call sign

noun

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.

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Meanings

nounindefinite call sign (plural indefinite call signs)

plural indefinite call signs

  1. governmentA 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.
Cite this entry
APA

indefinite call sign. (n.d.). In WatkinsX Dictionary. Retrieved November 5, 2026, from https://dictionary.watkinsx.com/word/indefinite%20call%20sign

MLA

“indefinite call sign.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/indefinite%20call%20sign. Accessed November 5, 2026.

Chicago

WatkinsX Dictionary, s.v. “indefinite call sign,” accessed November 5, 2026, https://dictionary.watkinsx.com/word/indefinite%20call%20sign.

Source: indefinite call sign on Wiktionary, CC BY-SA 4.0.