casus

[d͡ʑɑˈsus]

/[d͡ʑɑˈsus]/ noun

The verdict

“casus” is uncommon Spanish (frequency #86,573 among 8,288 “C” headwords), classed as a noun. The kind of spelling people second-guess.

#86,573
frequency rank, Spanish
8,288
“C” headwords

According to Wiktionary data (CC BY-SA, analyzed September 3, 2026) - Agente.

Corpus desk

Index ES-casus · casus · Spanish

casus · rank #86,573 · 0 variants · 0 confusables

  • FREQ-RARE #86,573
  • LEN-MID 5 letters
  • VOW-2 2 vowels
  • CONFUS-0 No pairs
  • VAR-0 0 variants
  • BOOK-DENSE 8,288
  • PHOTO-FINISH castristas

Nearest frequency peer: castristas (-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.

Rangos de cola larga cerca de “casus”

Banda escasa: las barras invierten el rango para que lo raro se lea más corto

corpus weight

What this shows Vista de cola larga: dónde “casus” se sitúa frente a rangos españoles igualmente raros.

Source FrequencyWords open word-frequency list As of September 3, 2026
Key facts for casus
PropertyValue
Headwordcasus
LanguageSpanish
Part of speechNoun
IPA[d͡ʑɑˈsus]
Letters5
Frequency rank#86,573
Misspellings tracked0
Confusable pairs0
SourceWiktionary (kaikki.org)

Cola larga: rango de “casus” en español

De izquierda a derecha: las pocas palabras que cargan el habla diaria, luego la cola larga casi invisible.casuscae en esta cola de rareza:

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

El eje es logarítmico: cada tick marca unas diez veces menos frecuencia. Vecinos raros de la misma franja: “castristas” (#86,572), “catalizar” (#86,574), “cautivaron” (#86,575). Entre 8,288 lemas con “C”, “casus” va en #86,573. Source: FrequencyWords open word-frequency list.

Rare enough to double-check

casus is uncommon Spanish at frequency #86,573 among 8,288 “C” headwords, classed as anoun, transcribed [d͡ʑɑˈsus]. Rarity is why readers land here mid-draft. 2 senses are on record.

No generated misspelling entries exist for casus in our index, since its letter pattern doesn't lend itself to common typo substitutions. Our confusable-pair dataset has no match for it, since nothing in our dataset looks or sounds close enough to cause mix-ups.

No explicit etymology string is stored for this entry, so its spelling is best explained by sound-to-letter mapping rather than etymology. The correct Spanish form is casus, spelled C-A-S-U-S.

Definition

  1. 1
    Agente.
  2. 2
    Espía.

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 Spanish corpus, MIT). See the methodology for how each field is sourced and updated.

Frequently Asked Questions

How do you spell "casus"?
"casus" is spelled C-A-S-U-S. The IPA pronunciation is [d͡ʑɑˈsus].
What does "casus" mean?
As a noun, "casus" means: Agente.
How do you pronounce "casus"?
The IPA (International Phonetic Alphabet) transcription for "casus" is [d͡ʑɑˈsus]. Click the speaker icon on the pronunciation badge above to hear it spoken aloud where audio is available.
What language does "casus" come from?
"casus" is a Spanish 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 Spanish words by spelling shape

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

Same letter count

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

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

Source: FrequencyWords open word-frequency list