naproxen
/nəˈpɹɒksən/
"naproxen" is a 8-letter English headword indexed on PlainSpell.
The verdict
“naproxen” is uncommon English (frequency #78,855 among 24,391 “N” headwords), classed as a noun. The kind of spelling people second-guess.
- #78,855
- frequency rank, English
- 24,391
- “N” headwords
According to Wiktionary data (CC BY-SA, analyzed May 6, 2026) - A certain non-steroidal anti-inflammatory drug that inhibits the COX-1 and COX-2 enzymes and thereby reduces pain, fever, inflammation, and stiffness.
| Property | Value |
|---|---|
| Headword | naproxen |
| Language | English |
| Part of speech | Noun |
| IPA | /nəˈpɹɒksən/ |
| Letters | 8 |
| Frequency rank | #78,855 |
| Misspellings tracked | 0 |
| Confusable pairs | 0 |
| Source | Wiktionary (kaikki.org) |
Where “naproxen” sits in English frequency
Rare enough to double-check
naproxen is uncommon English at frequency #78,855 among 24,391 “N” headwords, classed as anoun, transcribed /nəˈpɹɒksən/. Rarity is why readers land here mid-draft. Gloss: "A certain non-steroidal anti-inflammatory drug that inhibits the COX-1 and COX-2 enzymes and thereby reduces pain, fever, inflammation, and stiffness.".
No generated misspelling entries exist for naproxen in our index, which points to an orthography that plays by predictable English rules. This headword has no recorded confusable partner, a sign it's visually distinctive enough not to be mixed up with another word.
Etymologically, the entry records: Blend of naphthyl + propionic + oxy- + -en. The correct English form is naproxen, spelled N-A-P-R-O-X-E-N.
Definition
- 1A certain non-steroidal anti-inflammatory drug that inhibits the COX-1 and COX-2 enzymes and thereby reduces pain, fever, inflammation, and stiffness.
Etymology
Blend of naphthyl + propionic + oxy- + -en.
This word in other languages
Definitions, pronunciation, and etymology for this entry are drawn from Wiktionary via the kaikki.org structured extract (CC BY-SA); frequency ordering uses the FrequencyWords open word-frequency list (2018 English corpus, MIT). See the methodology for how each field is sourced and updated.
Frequently Asked Questions
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Using “naproxen”
The practical upshot for anyone who landed here from a spell-check.
- The one correct English spelling is N-A-P-R-O-X-E-N - every other letter order is a misspelling in standard orthography.
- Say it as /nəˈpɹɒksən/ (IPA); tap the speaker on the pronunciation badge to hear it where audio exists.
- Browse more English words and confusable pairs in the same reference. English words
Other uncommon English words near this rank
Data Source
Wiktionary (via kaikki.org), licensed under CC BY-SA & GFDL. Word ordering uses an open word-frequency list; misspelling variants are generated by edit-distance from the correct headword.