zolpidem
/ˈzoʊl.pɪˌdɛm/
"zolpidem" is a 8-letter English headword indexed on PlainSpell.
The verdict
“zolpidem” is uncommon English (frequency #84,936 among 2,810 “Z” headwords), classed as a noun. The kind of spelling people second-guess.
- #84,936
- frequency rank, English
- 2,810
- “Z” headwords
According to Wiktionary data (CC BY-SA, analyzed May 6, 2026) - A sedative and hypnotic drug administered orally in the form of its tartrate (C₁₉H₂₁N₃O)₂·C₄H₆O₆ in the short-term treatment of insomnia.
Corpus desk
Index EN-zolpidem · zolpidem · English
zolpidem · rank #84,936 · 0 variants · 0 confusables
- FREQ-RARE #84,936
- LEN-LONG 8 letters
- VOW-3 3 vowels
- CONFUS-0 No pairs
- VAR-0 0 variants
- BOOK-MID 2,810
- PHOTO-FINISH Zanetti
Nearest frequency peer: Zanetti (-2 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.
Frequency neighbourhood for “zolpidem”
Lower corpus rank = more everyday usage (inverted bar length for readability)
- yella
yella
15,072 corpus weight
- yester
yester
15,071 corpus weight
- Yiannopoulos
Yiannopoulos
15,070 corpus weight
- Zanetti
Zanetti
15,067 corpus weight
- zolpidem
zolpidem
15,065 corpus weight
- Zubair
Zubair
15,063 corpus weight
What this shows Bars show where “zolpidem” sits against the nearest ranked English headwords in the FrequencyWords band, not a reprint of letter-browse containment.
| Property | Value |
|---|---|
| Headword | zolpidem |
| Language | English |
| Part of speech | Noun |
| IPA | /ˈzoʊl.pɪˌdɛm/ |
| Letters | 8 |
| Frequency rank | #84,936 |
| Misspellings tracked | 0 |
| Confusable pairs | 0 |
| Source | Wiktionary (kaikki.org) |
Where “zolpidem” sits in English frequency
Rare enough to double-check
zolpidem is uncommon English at frequency #84,936 among 2,810 “Z” headwords, classed as anoun, transcribed /ˈzoʊl.pɪˌdɛm/. Rarity is why readers land here mid-draft. Gloss: "A sedative and hypnotic drug administered orally in the form of its tartrate (C₁₉H₂₁N₃O)₂·C₄H₆O₆ in the short-term treatment of insomnia.".
No generated misspelling entries exist for zolpidem in our index, since its letter sequence doesn't invite the usual edit-distance slips. No confusable counterpart is on file for this word, a sign it's visually distinctive enough not to be mixed up with another word.
Etymologically, the entry records: Probably from (imida)zol(e) + p(yr)id(ine) + (ac)e(ta)m(ide). The correct English form is zolpidem, spelled Z-O-L-P-I-D-E-M.
Definition
- 1A sedative and hypnotic drug administered orally in the form of its tartrate (C₁₉H₂₁N₃O)₂·C₄H₆O₆ in the short-term treatment of insomnia.
Etymology
Probably from (imida)zol(e) + p(yr)id(ine) + (ac)e(ta)m(ide).
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.
PlainSpell is rendered directly from structured Wiktionary extracts and open word-frequency lists, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of May 6, 2026. Primary sources: Wiktionary (via kaikki.org) and FrequencyWords.
Frequently Asked Questions
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Similar English words by spelling shape
Same letter count and similar misspelling depth for "zolpidem", not the corpus desk frequency band.
Same letter count
Frequency-ranked English headwords with 8 letters (nearest by frequency 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.