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FELIX

noun

FELIX is a noun meaning “Free Electron Laser for Infrared eXperiments” (English Wiktionary, September 2026). It is spelled F-E-L-I-X and has 2 syllables, and it appears 6.9 times per million words in written English (wordfreq, 2021 data).

What does FELIX mean?

noun

  1. 1

    Free Electron Laser for Infrared eXperiments

  2. 2

    Free-orbit Experiment with Laser Interferometry X-Rays

Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).

How do you pronounce FELIX?

    FELIX has 2 syllables (counted from its American pronunciation in the CMU Pronouncing Dictionary).

    Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).

    How common is FELIX?

    FELIX appears 6.9 times per million words in written English, the 9,045th most frequent word form in the list.

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