naloxone
/nəˈlɒk.səʊn/
"naloxone" is a 8-letter English headword indexed on PlainSpell.
The verdict
“naloxone” is uncommon English (frequency #51,866 among 1,534 “N” headwords), classed as a noun. The kind of spelling people second-guess.
- #51,866
- frequency rank, English
- 1,534
- “N” headwords
According to Wiktionary data (CC BY-SA, analyzed September 3, 2026) - An opioid inverse agonist used to counter the effects of an overdose on opioids (such as heroin or morphine).
Corpus desk
Index EN-naloxone · naloxone · English
naloxone · rank #51,866 · 0 variants · 0 confusables
- FREQ-RARE #51,866
- LEN-LONG 8 letters
- VOW-4 4 vowels
- CONFUS-0 No pairs
- VAR-0 0 variants
- BOOK-MID 1,534
- PHOTO-FINISH nameplate
Nearest frequency peer: nameplate (+1 rank slots)
Read with this headword: Spelling guide for this pattern
Desk codes from Wiktionary headword shape, FrequencyWords rank tier, confusable-pair count, generated misspelling depth, letter-cohort book size, and photo-finish peer. Not a difficulty grade.
Long-tail ranks near “naloxone”
Sparse band: bars invert rank so rarer forms read shorter
- Mykonos
Mykonos
48,137 corpus weight
- naloxone
naloxone
48,135 corpus weight
- nameplate
nameplate
48,134 corpus weight
- Nanaimo
Nanaimo
48,133 corpus weight
- nasri
nasri
48,132 corpus weight
- nen
nen
48,130 corpus weight
What this shows Long-tail view: where “naloxone” sits against similarly uncommon English ranks.
| Property | Value |
|---|---|
| Headword | naloxone |
| Language | English |
| Part of speech | Noun |
| IPA | /nəˈlɒk.səʊn/ |
| Letters | 8 |
| Frequency rank | #51,866 |
| Misspellings tracked | 0 |
| Confusable pairs | 0 |
| Source | Wiktionary (kaikki.org) |
Long-tail rank of “naloxone” in English
Rare enough to double-check
naloxone is uncommon English at frequency #51,866 among 1,534 “N” headwords, classed as anoun, transcribed /nəˈlɒk.səʊn/. Rarity is why readers land here mid-draft. Gloss: "An opioid inverse agonist used to counter the effects of an overdose on opioids (such as heroin or morphine).".
No misspelling variants are generated for naloxone in our index, typically a sign the spelling maps closely to how the word sounds. Our dataset records no confusable match here, since no other headword is close enough in sound or shape to pair with it.
Etymologically, the entry records: From nal- (“opioid receptor antagonist/agonist”) + (hydr)ox(y) + -one. The correct English form is naloxone, spelled N-A-L-O-X-O-N-E.
Definition
- 1An opioid inverse agonist used to counter the effects of an overdose on opioids (such as heroin or morphine).
Recorded use
Wiktionary exampleThese source excerpts show how naloxone appears in context. They illustrate usage; the definition above remains the entry’s reference meaning.
Neffy uses the same spray device as Narcan, the naloxone nasal spray for opioid overdose, according to a spokesperson for its maker, ARS Pharmaceuticals.
Etymology
From nal- (“opioid receptor antagonist/agonist”) + (hydr)ox(y) + -one.
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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Similar English words by spelling shape
Same letter count and similar misspelling depth for "naloxone", not the corpus desk frequency band.
Same letter count
Frequency-ranked English headwords with 8 letters (nearest by frequency rank).