sinus

\si.nys\

/\si.nys\/ noun

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

The verdict

“sinus” has 7 generated spelling variants in the French index at frequency #26,185. The variants make it a useful spelling check.

#26,185
frequency rank, French
6,032
“S” headwords
7
tracked misspellings
20
confusable pairs

According to Wiktionary data (CC BY-SA, analyzed September 3, 2026) - Formation anatomique creuse, liquidienne ou pneumatique.

Corpus desk

Index FR-sinus · sinus · French

sinus · rank #26,185 · 7 variants · 20 confusables

  • FREQ-MID #26,185
  • LEN-MID 5 letters
  • VOW-2 2 vowels
  • CONFUS-HIGH 20 pairs
  • VAR-MID 7 variants
  • BOOK-DENSE 6,032
  • PHOTO-FINISH similitude

Nearest frequency peer: similitude (-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 « sinus »

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

corpus weight

What this shows « sinus » 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).

sinus vs sus
60% similar
sinus vs sis
60% similar
sinus vs sous
60% similar

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

Key facts for sinus
PropertyValue
Headwordsinus
LanguageFrench
Part of speechNoun
IPA\si.nys\
Letters5
Frequency rank#26,185
Misspellings tracked7
Confusable pairs20
SourceWiktionary (kaikki.org)

Fréquence de l'aimant d'erreurs « sinus »

La fréquence va de la poignée de mots du quotidien (gauche) à la longue queue presque jamais vue (droite).sinusse 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 « similitude » (#26,184), « situant » (#26,186), « SH » (#26,183). Parmi 6,032 lemmes en « S », « sinus » est au #26,185. Source: FrequencyWords open word-frequency list.

A misspelling magnet

The generator records 7 spelling variants around sinus (IPA \si.nys\), anoun. Corpus frequency is #26,185 among 6,032 “S” headwords. Wiktionary lists 5 senses, so context still picks the gloss.

Our generated misspelling index lists 7 likely wrong-spelling variants for sinus, with forms such as "isnus", "sinnus", and "sinsu". 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 20 confusable-pair relationships, "sus", "sis", "sous", and more, where similar look or sound leads writers to substitute one word for another in context.

No explicit etymology string is stored for this entry, so spelling patterns must be inferred from the word's phoneme-to-grapheme mapping rather than from a documented borrowing chain. The correct French form is sinus, spelled S-I-N-U-S.

Definition

  1. 1
    Formation anatomique creuse, liquidienne ou pneumatique.
  2. 2
    Cavité pneumatique irrégulière de certains os du crane.
  3. 3
    Aspect dilaté de certains vaisseaux, de certains conduits.
  4. 4
    Le sinus d’un angle dans un triangle rectangle est égal au rapport de la longueur du coté opposé à l’angle par celle de l’hypoténuse. Si on oriente les angles, le sinus est un nombre compris entre −1 et +1.
  5. 5
    Fonction trigonométrique. C’est une fonction de la variable réelle qui, à chaque réel α, associe le sinus de l’angle orienté de mesure α radians. Elle peut être définie comme somme d'une série entière convergente.

Recorded use

Wiktionary examples

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

  1. L'artère coronaire droite naît du sinus aortique droit de l'aorte ascendante. Elle se dirige en avant, puis descend verticalement dans le sillon coronaire, entre l'atrium droit et le ventricule droit […].
  2. Sinus veineux

This word in other languages

sinus(English)seno(Español)Sinus(Deutsch)seno(Português)

Common misspellings

Also misspelled as:

  • isnus
  • sinnus
  • sinsu
  • sinuss
  • siuns
  • snius
  • ssinus

Misspelling Pattern Breakdown

How far each generated variant is from the correct spelling of sinus - counted as single-character edits (an insertion, a deletion, or a substituted letter). The larger the bar, the easier the typo is to spot; one-edit slips are the ones that sneak past readers.

isnus2sinnus1sinsu2sinuss1siuns2snius2ssinus1
Edit distance from "sinus"

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 "sinus"?
"sinus" is spelled S-I-N-U-S. The IPA pronunciation is \si.nys\.
What does "sinus" mean?
As a noun, "sinus" means: Formation anatomique creuse, liquidienne ou pneumatique.
What words are commonly confused with "sinus"?
"sinus" is commonly confused with "sus", "sis", "sous". These words look or sound similar but have different meanings. PlainSpell provides detailed comparisons for each pair.
How do you pronounce "sinus"?
The IPA (International Phonetic Alphabet) transcription for "sinus" is \si.nys\. Click the speaker icon on the pronunciation badge above to hear it spoken aloud where audio is available.
What language does "sinus" come from?
"sinus" is a French word. You can look up definitions, pronunciations, and spelling data for this and other words across English, Spanish, Portuguese, French, and German on PlainSpell.
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 "sinus", not the corpus desk frequency band.

Same letter count

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

salve#26,173Trent#26,210Viola#26,216Wanda#26,222

Similar misspelling depth

Headwords with a similar count of attested misspellings (7 here; floor ≥5).

truffe7 variantsécume7 variantsémeut7 variantsétire7 variants

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

Source: FrequencyWords open word-frequency list