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ksi

French, noun/ksi/

ksi is spelled K-S-I (3 letters) and appears about once in every 14 million words in written French, the 121,051st most frequent French word form (wordfreq, 2021 data). Ksi is a French masculine noun meaning “xi (Greek letter)” (English Wiktionary, September 2026). The French Wiktionary (Wiktionnaire) defines it as “ξ, Ξ, quatorzième lettre et dixième consonne de l’alphabet grec”.

What does ksi mean in English?

noun

  1. 1

    masculinexi (Greek letter)

Source: English Wiktionary, French section, dump of September 2, 2026 (CC BY-SA 4.0).

How French dictionaries define it

noun: 1. ξ, Ξ, quatorzième lettre et dixième consonne de l’alphabet grec. 2. Lettre archaïque de l’alphabet cyrillique.

The definition in the French Wiktionary (Wiktionnaire), in French.

Source: French Wiktionary (Wiktionnaire), dump of September 1, 2026 (CC BY-SA 4.0), through kaikki.org.

Forms of ksi

  • xi alternative
  • ksis plural

Source: English Wiktionary and French Wiktionary (Wiktionnaire) (dumps of September 2, 2026 and September 1, 2026).

How do you pronounce ksi?

  • /ksi/
  • \ksi\

Sources: English Wiktionary, French Wiktionary (Wiktionnaire) (dumps of September 2, 2026 and September 1, 2026); recordings from Wikimedia Commons.

English words that translate to ksi

Source: the translation tables of the English Wiktionary, dump of September 2, 2026.

How common is ksi in French?

ksi appears about once in every 14 million words in written French.

Source: written frequency: wordfreq 3.1 (a 2021 snapshot of Wikipedia, subtitles, news, books, web text and social media).

What to look up after ksi