cirrusvscorpusWhich spelling fits?

Which to use

“cirrus” and “corpus” are a confusable English pair: similar on the page, but distinct in meaning, check the gloss before you choose.

#44,119
“cirrus” frequency rank
#12,214
“corpus” frequency rank
56333
confusion score

Side-by-Side Comparison

Feature cirrus corpus
Definition A tendril. A collection of written or spoken texts.

Where the eye mixes cirrus and corpus

Muted = shared; highlighted = the visual trap. They share 4 letters in sequence. cirrus and corpus follow the identical consonant-vowel pattern (CVCCVC). Same shape at a glance is often the real trap, independent of shared letters.

6 ch
cirrus
6 ch
corpus

Visual trap between cirrus and corpus

A purely visual mix-up. cirrus (/ˈsɪɹəs/) and corpus (/ˈkɔːpəs/) are said differently, so reading them aloud is the quickest way to catch the wrong one. On the page they stay close: they share most of their letters but differ in 2 positions. Our composite confusion score for this pair is 56333, derived from the frequency rank of both members and their visual similarity.

cirrus is recorded at frequency rank #44,119, classified as anoun, pronounced /ˈsɪɹəs/. corpus is at rank #12,214, tagged as anoun, pronounced /ˈkɔːpəs/.

Glosses for this pair are partially populated in our dataset, but the full side-by-side definitions above should still guide you to the right choice.

With a confusion score of 56333, this pair ranks #127,039 of 530,003 scored English confusable pairs - among the most confusable pairs.

Orthographic DNA of cirrus vs corpus

Shared letters: crsu. Private to "cirrus": i. Private to "corpus": op.

"cirrus" · 6 letters · shape CVCCVC  ·  "corpus" · 6 letters · shape CVCCVC

Known mistypes of this pair

  • cirrus ← ccirrus · cirrsu · cirruss · cirurs · cirus · crirus · icrrus
  • corpus ← ccorpus · coprus · corppus · corpsu · corpuss · corrpus · corups · cropus

Frequently Asked Questions

Is swapping "cirrus" for "corpus" ever safe?
No. They are said differently (/ˈsɪɹəs/ versus /ˈkɔːpəs/) and carry different meanings; reading the sentence aloud is usually enough to catch the wrong one.
In ordinary English text, does "cirrus" or "corpus" show up more?
"corpus" is the more common of the two: it sits at frequency rank #12,214 in our English list, against #44,119 for "cirrus". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

After this comparison

Pronunciation already separates them, if the page still looks alike, the dictionary links below settle it.

  • Full dictionary entry for "cirrus" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "corpus" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #127,039 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
  • "cirrus" and "corpus" also get mixed up with nearby pairs, the highest-scored neighbour is "cirque vs cirrus". Nearby pair
  • Recorded mistypes exist for at least one side of this pair, useful when a spell-checker or OCR lands on the wrong form. See mistypes

Confusion rank #127,039 of 530,003 scored English pairs, corpus vintage 2026-09-03, not spelling advice.

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

Source: FrequencyWords open word-frequency list