spectrum
\ˈspɛk.tɹəm\
The verdict
“spectrum” is a moderately-common French word, ranked #45,883 in French word frequency and used as a noun.
- #45,883
- frequency rank, French
- 8
- letters
- 13
- tracked misspellings
- 2
- confusable pairs
According to Wiktionary data (CC BY-SA, analyzed May 6, 2026) - Spectre.
Visual similarity to commonly confused words
How many letter changes separate each confused pair (Levenshtein distance, normalized).
Source: PlainSpell confusable corpus (Wiktionary, CC BY-SA).
| Property | Value |
|---|---|
| Headword | spectrum |
| Language | French |
| Part of speech | Noun |
| IPA | \ˈspɛk.tɹəm\ |
| Letters | 8 |
| Frequency rank | #45,883 |
| Misspellings tracked | 13 |
| Confusable pairs | 2 |
| Source | Wiktionary (kaikki.org) |
Where “spectrum” sits in French frequency
Spelling & Dictionary Insight
The French entry for spectrum is 8 letters long, classified as a noun, and transcribed in the International Phonetic Alphabet as \ˈspɛk.tɹəm\. Corpus data places it at rank #45,883 in overall French word frequency, marking it as uncommon enough that many writers pause before typing it. Wiktionary records 3 distinct senses for this headword, so context determines which meaning a reader should apply.
Our generated misspelling index lists 13 likely wrong-spelling variants for spectrum, with forms such as "psectrum", "sepctrum", and "spcetrum". Each of these forms differs from the correct spelling by one small edit: a doubled letter, a dropped silent letter, or a substituted vowel. It also participates in 2 confusable-pair relationships, "spectre", "spectres", since the words sound or look close enough that writers reach for the wrong one mid-sentence.
No documented word history exists for this headword, so its spelling is easiest explained by how it's pronounced rather than where it came from. The correct French form is spectrum, spelled S-P-E-C-T-R-U-M.
Definition
- 1Spectre.
- 2Spectre, gamme, éventail, plage.
- 3Trouble du spectre de l’autisme.
Synonyms
Common misspellings
Also misspelled as: psectrum,sepctrum,spcetrum,specctrum,specrtum,spectrmu,spectrrum,spectrumm,specttrum,specturm,spetcrum,sppectrum,sspectrum
Misspelling Pattern Breakdown
How far each generated variant is from the correct spelling of spectrum - expressed in single-character edits (insert, delete, or swap one letter). Bigger bars stand out at a glance; a one-edit slip is the hardest to catch.
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.
Frequently Asked Questions
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Using “spectrum”
The practical upshot for anyone who landed here from a spell-check.
- The one correct French spelling is S-P-E-C-T-R-U-M - every other letter order is a misspelling in standard orthography.
- Say it as \ˈspɛk.tɹəm\ (IPA); tap the speaker on the pronunciation badge to hear it where audio exists.
- Don't mix it up with “spectre” - see the side-by-side comparison. spectrum vs spectre
- 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.