formaldéhyde
\fɔʁ.mal.de.id\
The verdict
“formaldéhyde” is uncommon French (frequency #50,837 among 137,178 “F” headwords), classed as a noun. The kind of spelling people second-guess.
- #50,837
- frequency rank, French
- 137,178
- “F” headwords
According to Wiktionary data (CC BY-SA, analyzed May 6, 2026) - Aldéhyde utilisé comme désinfectant, conservateur et surtout pour la production de polymères et autres produits chimiques.
Corpus desk
Index FR-formaldehyde · formaldéhyde · French
formaldéhyde · rank #50,837 · 0 variants · 0 confusables
- FREQ-RARE #50,837
- LEN-MEGA 12 letters
- VOW-5 5 vowels
- CONFUS-0 No pairs
- VAR-0 0 variants
- BOOK-DENSE 137,178
- PHOTO-FINISH foreman
Nearest frequency peer: foreman (-1 rank slots)
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 “formaldéhyde”
Lower corpus rank = more everyday usage (inverted bar length for readability)
- folioles
folioles
49,167 corpus weight
- fondamental…
fondamentaliste
49,166 corpus weight
- foreman
foreman
49,165 corpus weight
- formaldéhyde
formaldéhyde
49,164 corpus weight
- fortuna
fortuna
49,163 corpus weight
- forçats
forçats
49,162 corpus weight
What this shows Bars show where “formaldéhyde” sits against the nearest ranked French headwords in the FrequencyWords band, not a reprint of letter-browse containment.
| Property | Value |
|---|---|
| Headword | formaldéhyde |
| Language | French |
| Part of speech | Noun |
| IPA | \fɔʁ.mal.de.id\ |
| Letters | 12 |
| Frequency rank | #50,837 |
| Misspellings tracked | 0 |
| Confusable pairs | 0 |
| Source | Wiktionary (kaikki.org) |
Where “formaldéhyde” sits in French frequency
Rare enough to double-check
formaldéhyde is uncommon French at frequency #50,837 among 137,178 “F” headwords, classed as anoun, transcribed \fɔʁ.mal.de.id\. Rarity is why readers land here mid-draft. Gloss: "Aldéhyde utilisé comme désinfectant, conservateur et surtout pour la production de polymères et autres produits chimiques.".
formaldéhyde has no tracked misspelling variants, a straightforward case of a spelling with little room for common typos. It is not paired with a close-neighbour confusable in our dataset, suggesting its spelling stands apart enough that readers rarely confuse it with something else.
This entry carries no recorded etymology, so its spelling is easiest explained by how it's pronounced rather than where it came from. The correct French form is formaldéhyde, spelled F-O-R-M-A-L-D-É-H-Y-D-E.
Definition
- 1Aldéhyde utilisé comme désinfectant, conservateur et surtout pour la production de polymères et autres produits chimiques.
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 French 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 French words by spelling shape
Same letter count and similar misspelling depth for "formaldéhyde", not the corpus desk frequency band.
Same letter count
Frequency-ranked French headwords with 12 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.