isotope

\izɔ.tɔp\

/\izɔ.tɔp\/ noun

The verdict

“isotope” is uncommon French (frequency #51,553 among 142,603 “I” headwords), classed as a noun. The kind of spelling people second-guess.

#51,553
frequency rank, French
142,603
“I” headwords

According to Wiktionary data (CC BY-SA, analyzed May 6, 2026) - Élément chimique ayant un même nombre de protons que l’élément chimique de référence, donc une même « place » dans le tableau périodique des éléments, mais un nombre de neutrons différent.

Corpus desk

Index FR-isotope · isotope · French

isotope · rank #51,553 · 0 variants · 0 confusables

  • FREQ-RARE #51,553
  • LEN-LONG 7 letters
  • VOW-4 4 vowels
  • CONFUS-0 No pairs
  • VAR-0 0 variants
  • BOOK-DENSE 142,603
  • PHOTO-FINISH invraisemblab…

Nearest frequency peer: invraisemblables (-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 “isotope”

Lower corpus rank = more everyday usage (inverted bar length for readability)

corpus weight

What this shows Bars show where “isotope” sits against the nearest ranked French headwords in the FrequencyWords band, not a reprint of letter-browse containment.

Source FrequencyWords open word-frequency list As of May 6, 2026
Key facts for isotope
PropertyValue
Headwordisotope
LanguageFrench
Part of speechNoun
IPA\izɔ.tɔp\
Letters7
Frequency rank#51,553
Misspellings tracked0
Confusable pairs0
SourceWiktionary (kaikki.org)

Where “isotope” sits in French frequency

Every-word frequency runs from the handful of words we use constantly (left) to the long tail used once in a blue moon (right). isotope lands here:

#1#100#1K#10K#100K
← used constantlyrarely used →

Scale is logarithmic (each tick is 10× rarer). Source: FrequencyWords open word-frequency list.

Rare enough to double-check

isotope is uncommon French at frequency #51,553 among 142,603 “I” headwords, classed as anoun, transcribed \izɔ.tɔp\. Rarity is why readers land here mid-draft. Gloss: "Élément chimique ayant un même nombre de protons que l’élément chimique de référence, donc une même « place » dans le tableau périodique des éléments, mais un nombre de neutrons différent.".

No misspelling variants are generated for isotope in our index, which points to an orthography that plays by predictable French rules. No confusable counterpart is on file for this word, since its spelling is unusual enough that it doesn't cluster with a lookalike.

This entry's etymology isn't recorded, so its spelling is easiest explained by how it's pronounced rather than where it came from. The correct French form is isotope, spelled I-S-O-T-O-P-E.

Definition

  1. 1
    Élément chimique ayant un même nombre de protons que l’élément chimique de référence, donc une même « place » dans le tableau périodique des éléments, mais un nombre de neutrons différent.

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

How do you spell "isotope"?
"isotope" is spelled I-S-O-T-O-P-E. The IPA pronunciation is \izɔ.tɔp\.
What does "isotope" mean?
As a noun, "isotope" means: Élément chimique ayant un même nombre de protons que l’élément chimique de référence, donc une même « place » dans le tableau périodique des éléments, mais un nombre de neutrons différent.
How do you pronounce "isotope"?
The IPA (International Phonetic Alphabet) transcription for "isotope" is \izɔ.tɔp\. Click the speaker icon on the pronunciation badge above to hear it spoken aloud where audio is available.
What language does "isotope" come from?
"isotope" is a French word. PlainSpell covers definitions, pronunciations, and spelling data across English, Spanish, Portuguese, French, and German.
Is PlainSpell free to use?
Yes, PlainSpell is a completely free word reference. You can look up definitions, pronunciations, confusable pairs, homophones, and spelling corrections across 5 languages without any sign-up or subscription.

Similar French words by spelling shape

Same letter count and similar misspelling depth for "isotope", not the corpus desk frequency band.

Same letter count

Frequency-ranked French headwords with 7 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.

Source: Wiktionary (via kaikki.org) Structured Wiktionary extract

Source: FrequencyWords open word-frequency list