plenary
/ˈpliːnəɹi/adjective, noun
plenary is spelled P-L-E-N-A-R-Y: 7 letters and 3 syllables. It appears 1.3 times per million words in written English, the 25,367th most frequent word form (wordfreq, 2021 data). As an adjective, plenary means “Fully attended by a plenum; for everyone's attendance” (English Wiktionary, September 2026).
How many letters and syllables are in plenary?
| Letters | 7: P-L-E-N-A-R-Y |
|---|---|
| Syllables | 3 (from its American pronunciation) |
| In writing | 1.3 times per million words; the 25,367th 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 plenary?
Plenary appears 1.3 times per million words in written English, the 25,367th 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 plenary?
- UK /ˈpliːnəɹi/
- US /ˈpliːnəɹi/
- US /ˈplɛnəɹi/
Plenary has 3 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: En-us-plenary.ogg, Wikimedia Commons (author and licence on each file's page).
Forms of plenary
- more plenary comparative
- most plenary superlative
- plenaries plural
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).
What does plenary mean?
The meanings the English Wiktionary records, quoted as written there (source below).
adjective
- 1
Fully attended by a plenum; for everyone's attendance.
- 2
Complete; full; entire; absolute.
noun
- 1
A plenary session.
After lunch, we will all be in the main auditorium listening to the plenary.
- 2
Part of a lesson, usually at or towards the end, designed to review or evaluate the learning that has taken place.
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).
Plenary in Spanish, French, German and Portuguese
In the sense fully attended:
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 plenary come from?
From Middle English plenarie, plenarye, from Late Latin plēnārius, from Latin plēnus (“full”).
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).