longueur d’onde
\lɔ̃.ɡœʁ d‿ɔ̃d\
The verdict
“longueur d’onde” is uncommon French (outside the top frequency list), classed as a noun. The kind of spelling people second-guess.
- Unranked
- below top-frequency French
- 15
- letters
According to Wiktionary data (CC BY-SA, analyzed May 6, 2026) - Distance sur laquelle une onde effectue une période.
| Property | Value |
|---|---|
| Headword | longueur d’onde |
| Language | French |
| Part of speech | Noun |
| IPA | \lɔ̃.ɡœʁ d‿ɔ̃d\ |
| Letters | 15 |
| Misspellings tracked | 0 |
| Confusable pairs | 0 |
| Source | Wiktionary (kaikki.org) |
Where “longueur d’onde” sits in French frequency
Rare enough to double-check
longueur d’onde is uncommon French outside the top frequency list, classed as anoun, transcribed \lɔ̃.ɡœʁ d‿ɔ̃d\. Rarity is why readers land here mid-draft. Gloss: "Distance sur laquelle une onde effectue une période.".
Zero misspellings are on record for longueur d’onde in our index, since its letter pattern doesn't lend itself to common typo substitutions. No close-neighbour confusable shows up for this headword in our dataset, which typically means the spelling is too distinctive to be mistaken for another word.
No explicit etymology string is stored for this entry, so its spelling is best read as a straightforward mapping from sound to letter. The correct French form is longueur d’onde, spelled L-O-N-G-U-E-U-R- -D-’-O-N-D-E.
Definition
- 1Distance sur laquelle une onde effectue une période.
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). See the methodology for how each field is sourced and updated.
Frequently Asked Questions
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Using “longueur d’onde”
The practical upshot for anyone who landed here from a spell-check.
- The one correct French spelling is L-O-N-G-U-E-U-R- -D-’-O-N-D-E - every other letter order is a misspelling in standard orthography.
- Say it as \lɔ̃.ɡœʁ d‿ɔ̃d\ (IPA); tap the speaker on the pronunciation badge to hear it where audio exists.
- Browse more French words and confusable pairs in the same reference. French words
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.