Each Play button uses your device's default local English voice, or a natural local fallback. The selected voice name appears after playback. This is synthesized speech, not a source recording.
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A character code represented by two sets of six lit torches, used to send messages character by character, in a two point visual fire telegraph. The character code is generated by encoding characters in a grid, where each character generates two numbers, uniquely representing each character as a pair of numbers.
Definition source: English Wiktionary via Wiktextract
Usage: historical
Topics: communications, electrical-engineering, engineering, natural-sciences, physical-sciences, telecommunications
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Meaning relationships
Synonyms: none provided
Antonyms: none provided
A grid used for fractionating plaintext characters so that they can be represented by a smaller set of symbols.
Definition source: English Wiktionary via Wiktextract
Topics: computing, cryptography, engineering, mathematics, natural-sciences, physical-sciences, sciences
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Meaning relationships
Synonyms: none provided
Antonyms: none provided
From Polybius + square (“grid”). It was invented by the Ancient Greek historian and scholar Polybius.