Cilly Definition

noun

(cryptography, dated) Any predictable facet of the Enigma Machine cipher due to operator error or laziness, whose existence helped the Allies to break the code.

Wiktionary

Other Word Forms of Cilly

Noun

Singular:
cilly
Plural:
cillies

Origin of Cilly

  • Uncertain; possibly a pun on silly and the letters CIL used as a cryptographic key.

    From Wiktionary

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Unscrambles

cilly