dilithium
/daɪˈlɪθiəm/noun
dilithium is spelled D-I-L-I-T-H-I-U-M: 9 letters and 4 syllables. It appears about once in every 13 million words in written English, the 107,757th most frequent word form (wordfreq, 2021 data). As a noun, dilithium means “The diatomic molecule Li₂ found in the gas phase” (English Wiktionary, September 2026).
How many letters and syllables are in dilithium?
| Letters | 9: D-I-L-I-T-H-I-U-M |
|---|---|
| Syllables | 4 (from its American pronunciation) |
| In writing | about once in every 13 million words; the 107,757th most frequent word form |
| Wrong spellings searched | none 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 dilithium?
Dilithium appears about once in every 13 million words in written English, the 107,757th 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 dilithium?
- /daɪˈlɪθiəm/
Dilithium has 4 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)-Flame,_not_lame-dilithium.wav, Wikimedia Commons (author and licence on each file's page).
What does dilithium mean?
The meanings the English Wiktionary records, quoted as written there (source below).
noun
- 1
The diatomic molecule Li₂ found in the gas phase.
- 2
Two lithium atoms in a molecule.
- 3
A fictional crystalline mineral in the Star Trek franchise, described as an essential component of anti-matter energy generation systems.
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).
Where does dilithium come from?
From di- + lithium.
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).