Playfair.
A surname.
Meaning & usage
A surname.
A placename
A placename A number of craters in Solar System. A crater in Mars, Solar System.
A placename A number of craters in Solar System. A crater in Moon, Earth-Moon System, Solar System.
Where this word comes from
* (craters): The craters are Named after Scottish mathematician, scientist and C of S minister John Playfair * (cipher): The cipher is Named after British Lord, baron, politician and scientist Lyon Playfair, who popularized the cipher.
Ellipsis of Playfair cipher.
an encryption using the Playfair cipher
A form of crossword in which some words must be encrypted with a Playfair cipher before being inserted into the grid, and solvers must deduce the codeword and the encrypted clues.
Where this word comes from
* (craters): The craters are Named after Scottish mathematician, scientist and C of S minister John Playfair * (cipher): The cipher is Named after British Lord, baron, politician and scientist Lyon Playfair, who popularized the cipher.
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Definitions, grammatical labels, IPA, etymology and examples: Wiktionary contributors, extracted by Kaikki / Wiktextract. Adapted under CC BY-SA 4.0. Selected fields and authored examples are shown; third-party quotations and audio are omitted. See contributor history.
Last enriched 2026-09-10. Definitions are in English. Romanizations are shown when supplied by the source; syllable estimates are omitted for unsupported scripts.