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LUCA

/ˈluːkə/noun

LUCA is spelled L-U-C-A: 4 letters and 2 syllables. It appears 2.4 times per million words in written English, the 17,587th most frequent word form (wordfreq, 2021 data). As a noun, LUCA means “Initialism of last universal common ancestor; the hypothesised most recent primordial organism that is an ancestor to all organisms now living” (English Wiktionary, September 2026). The plural of LUCA is Lucas or LUCAs.

How many letters and syllables are in LUCA?

Letters4: L-U-C-A
Syllables2 (from its American pronunciation)
In writing2.4 times per million words; the 17,587th most frequent word form
Wrong spellings searchednone measured in search

Sources: letters and syllables from the English Wiktionary's hyphenation or pronunciation and the CMU Pronouncing Dictionary; written frequency: wordfreq 3.1 (a 2021 snapshot of Wikipedia, subtitles, news, books, web text and social media).

How common is LUCA?

LUCA appears 2.4 times per million words in written English, the 17,587th 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).

How do you pronounce LUCA?

  • /ˈluːkə/

LUCA 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). Recordings: LL-Q1860_(eng)-Vealhurl-Luca.wav, Wikimedia Commons (author and licence on each file's page).

Forms of LUCA

  • Lucas plural
  • LUCAs plural
  • Luca
  • L.U.C.A.
  • L. U. C. A.

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

What does LUCA mean?

The meanings the English Wiktionary records, quoted as written there (source below).

noun

  1. 1

    Initialism of last universal common ancestor; the hypothesised most recent primordial organism that is an ancestor to all organisms now living.

noun

as Luca
  1. 1

    Alternative letter-case form of LUCA.

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

What to look up after LUCA