sérum

\se.ʁɔm\

/\se.ʁɔm\/ noun

By · According to Wiktionary data (CC BY-SA) ·

The verdict

“sérum” has 8 generated spelling variants in the French index at frequency #15,264. The variants make it a useful spelling check.

#15,264
frequency rank, French
6,032
“S” headwords
8
tracked misspellings
20
confusable pairs

According to Wiktionary data (CC BY-SA, analyzed September 3, 2026) - Liquide qui surnage lorsque le sang se coagule.

Corpus desk

Index FR-serum · sérum · French

sérum · rank #15,264 · 8 variants · 20 confusables

  • FREQ-MID #15,264
  • LEN-MID 5 letters
  • VOW-2 2 vowels
  • CONFUS-HIGH 20 pairs
  • VAR-MID 8 variants
  • BOOK-DENSE 6,032
  • PHOTO-FINISH sécu

Nearest frequency peer: sécu (-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.

Pairs de rang près de l'aimant d'erreurs « sérum »

Même bande de rareté: utile si une faute tombe sur un lemme voisin

corpus weight

What this shows « sérum » siège parmi ces pairs FrequencyWords; la profondeur des fautes est suivie à part dans le graphique d'édition.

Source FrequencyWords open word-frequency list As of September 3, 2026

Visual similarity to commonly confused words

How many letter changes separate each confused pair (Levenshtein distance, normalized).

sérum vs sum
60% similar
sérum vs seu
40% similar
sérum vs seul
40% similar

Source: PlainSpell confusable corpus (Wiktionary, CC BY-SA).

Key facts for sérum
PropertyValue
Headwordsérum
LanguageFrench
Part of speechNoun
IPA\se.ʁɔm\
Letters5
Frequency rank#15,264
Misspellings tracked8
Confusable pairs20
SourceWiktionary (kaikki.org)

Fréquence de l'aimant d'erreurs « sérum »

La fréquence va de la poignée de mots du quotidien (gauche) à la longue queue presque jamais vue (droite).sérumse place ici:

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

L'échelle est logarithmique (chaque tic ≈ 10× plus rare). Dans la même bande de rareté figurent « sécu » (#15,263), « taxation » (#15,265), « syndicaliste » (#15,262). Parmi 6,032 lemmes en « S », « sérum » est au #15,264. Source: FrequencyWords open word-frequency list.

A misspelling magnet

The generator records 8 spelling variants around sérum (IPA \se.ʁɔm\), anoun. Corpus frequency is #15,264 among 6,032 “S” headwords. Wiktionary lists 2 senses, so context still picks the gloss.

Our generated misspelling index lists 8 likely wrong-spelling variants for sérum, with forms such as "serum", "sréum", and "ssérum". Every one of these variants traces to a single-character edit -- an added or dropped letter, a swapped consonant, or a vowel swap -- the kind of slip a spell-checker is built to catch. It also participates in 20 confusable-pair relationships, "sum", "seu", "seul", and more, a pairing that trips writers up because the two words share enough sound or shape to blur together.

No borrowing history is documented for this entry, so its spelling is best read as a straightforward mapping from sound to letter. The correct French form is sérum, spelled S-É-R-U-M.

Definition

  1. 1
    Liquide qui surnage lorsque le sang se coagule.
  2. 2
    Liquide que l’on extrait du sang ou que l’on prépare artificiellement pour divers emplois thérapeutiques.

Recorded use

Wiktionary examples

These source excerpts show how sérum appears in context. They illustrate usage; the definition above remains the entry’s reference meaning.

  1. J’ai laissé mes yeux traîner sur les étagères. Crèmes de jour, de nuit, masques hydratants, purifiants, gommages, sérums antifatigue.
  2. […] et la semaine dernière, « faute de sérum », deux de ses adjoints, « des jeunes gars brillants du Lancashire », sont morts après s’être fait piquer par des cobras dans les marais jouxtant la ville.

This word in other languages

serum(English)suero(Español)sérum(Português)

Common misspellings

Also misspelled as:

  • serum
  • sréum
  • ssérum
  • sérmu
  • sérrum
  • sérumm
  • séurm
  • ésrum

Misspelling Pattern Breakdown

How far each generated variant is from the correct spelling of sérum - measured in single-character edits (insert, delete, or substitute a letter). Larger bars are easier to catch; one-edit slips are the sneakiest.

serum1sréum2ssérum1sérmu2sérrum1sérumm1séurm2ésrum2
Edit distance from "sérum"

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

How do you spell "sérum"?
"sérum" is spelled S-É-R-U-M. The IPA pronunciation is \se.ʁɔm\.
What does "sérum" mean?
As a noun, "sérum" means: Liquide qui surnage lorsque le sang se coagule.
What words are commonly confused with "sérum"?
"sérum" is commonly confused with "sum", "seu", "seul". These words look or sound similar but have different meanings. PlainSpell provides detailed comparisons for each pair.
How do you pronounce "sérum"?
The IPA (International Phonetic Alphabet) transcription for "sérum" is \se.ʁɔm\. Click the speaker icon on the pronunciation badge above to hear it spoken aloud where audio is available.
What language does "sérum" come from?
"sérum" 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 "sérum", not the corpus desk frequency band.

Same letter count

Frequency-ranked French headwords with 5 letters (nearest by frequency rank).

today#15,271serra#15,253Vidal#15,282woody#15,285

Similar misspelling depth

Headwords with a similar count of attested misspellings (8 here; floor ≥5).

traque8 variantsyaourt8 variantsroyaux8 variantsrevoit8 variants

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

Source: FrequencyWords open word-frequency list