lunation
lu·na·tion/luːˈneɪʃən/noun
lunation is spelled L-U-N-A-T-I-O-N: 8 letters and 3 syllables (lu·na·tion). It appears about once in every 39 million words in written English, the 191,932nd most frequent word form (wordfreq, 2021 data). As a noun, lunation means “A month of an average of approximately 29.53 days, measured from a lunar phase until the return of that same phase” (English Wiktionary, September 2026). The plural of lunation is lunations.
How many letters and syllables are in lunation?
| Letters | 8: L-U-N-A-T-I-O-N |
|---|---|
| Syllables | 3: lu·na·tion |
| In writing | about once in every 39 million words; the 191,932nd most frequent word form |
| Wrong spellings searched | none measured in search |
Sources: letters and syllables from the English Wiktionary's hyphenation or pronunciation; written frequency: wordfreq 3.1 (a 2021 snapshot of Wikipedia, subtitles, news, books, web text and social media).
How common is lunation?
Lunation appears about once in every 39 million words in written English, the 191,932nd 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 lunation?
- /luːˈneɪʃən/
Lunation has 3 syllables, split lu·na·tion in writing.
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract). Recordings: LL-Q1860_(eng)-Vealhurl-lunation.wav, Wikimedia Commons (author and licence on each file's page).
Forms of lunation
- lunations plural
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).
What does lunation mean?
The meanings the English Wiktionary records, quoted as written there (source below).
noun
- 1
A month of an average of approximately 29.53 days, measured from a lunar phase until the return of that same phase.
- 2
The irregular period from one new moon until the next.
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).
Lunation in Spanish, French, German and Portuguese
In the sense a month measured from a lunar phase until the return of that same phase:
| Language | Words |
|---|---|
| Portuguese | lunação |
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract). Translations are Wiktionary's, by sense; a linked word has its own PlainSpell page.
Where does lunation come from?
Borrowed from Medieval Latin lūnātiō.
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).