fentanyl
/ˈfɛn.tə.nɑl/noun
fentanyl is spelled F-E-N-T-A-N-Y-L: 8 letters and 3 syllables. It appears about once in every 1 million words in written English, the 34,504th most frequent word form (wordfreq, 2021 data). As a noun, fentanyl means “A synthetic opioid narcotic analgesic, C₂₂H₂₈N₂O, with pharmacological action similar to morphine that is administered transdermally as a skin patch…” (English Wiktionary, September 2026). The plural of fentanyl is fentanyls.
How many letters and syllables are in fentanyl?
| Letters | 8: F-E-N-T-A-N-Y-L |
|---|---|
| Syllables | 3 (from its pronunciation) |
| In writing | about once in every 1 million words; the 34,504th 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 fentanyl?
Fentanyl appears about once in every 1 million words in written English, the 34,504th 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 fentanyl?
- /ˈfɛn.tə.nɪl/
- [ˈfɛnʔ.nɪɫ]
- US /ˈfɛn.tə.nɑl/
Fentanyl has 3 syllables (counted from the pronunciation).
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract). Recordings: En_US_fentanyl.wav, Wikimedia Commons (author and licence on each file's page).
Forms of fentanyl
- fentanyls plural
- fentanil
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).
What does fentanyl mean?
The meanings the English Wiktionary records, quoted as written there (source below).
noun
- 1
A synthetic opioid narcotic analgesic, C₂₂H₂₈N₂O, with pharmacological action similar to morphine that is administered transdermally as a skin patch and in the form of its citrate, C₂₂H₂₈N₂O·C₆H₈O₇, is administered orally or parenterally (as by intravenous or epidural injection); N-phenyl-N-[1-(2-phenylethyl)piperidin-4-yl]propanamide.
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).
Fentanyl in Spanish, French, German and Portuguese
In the sense painkiller:
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.