hook flash

noun

A signal that briefly disconnects the local loop circuit by means of the hookswitch or a dedicated button, used to control functions on the public telephone exchange.

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flash
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Meanings

nounhook flash (plural hook flashes)

plural hook flashes

  1. communicationsA signal that briefly disconnects the local loop circuit by means of the hookswitch or a dedicated button, used to control functions on the public telephone exchange.

    Synonyms: flash

Synonyms & antonyms

nounA signal that briefly disconnects the local loop circuit by means of the hookswitch or a dedicated button, used to control functions on the public telephone exchange.

Similar
flash
Cite this entry
APA

hook flash. (n.d.). In WatkinsX Dictionary. Retrieved November 3, 2026, from https://dictionary.watkinsx.com/word/hook%20flash

MLA

“hook flash.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/hook%20flash. Accessed November 3, 2026.

Chicago

WatkinsX Dictionary, s.v. “hook flash,” accessed November 3, 2026, https://dictionary.watkinsx.com/word/hook%20flash.

Source: hook flash on Wiktionary, CC BY-SA 4.0.