concavevsconclaveTell them apart

Quick tell: concave is a adjective, conclave is a noun, so they fill different roles in a sentence.

Which to use

“concave” is an adjective and “conclave” is a noun - they look or sound alike but fill different roles in a sentence.

#28,155
“concave” frequency rank
#36,498
“conclave” frequency rank
64653
confusion score

Side-by-Side Comparison

Feature concave conclave
Definition Curved like the inner surface of a sphere or bowl. The set of apartments in which cardinals are secluded while the process to elect a pope takes place.

Where the eye mixes concave and conclave

Muted = shared; highlighted = the visual trap. They share 7 letters in sequence.

7 ch
concave
8 ch
conclave

Visual trap between concave and conclave

These two trip readers on the page rather than in the ear: concave is /ˈkɒn.keɪv/ while conclave is /ˈkɒnkleɪv/. Spoken aloud the problem disappears. In writing it persists, because they differ by 1 letter(s) in length, and the parts of speech differ too (adjective vs noun), which is usually the fastest check. Our composite confusion score for this pair is 64653, derived from the frequency rank of both members and their visual similarity.

concave is recorded at frequency rank #28,155, classified as anadj, pronounced /ˈkɒn.keɪv/. conclave is at rank #36,498, tagged as anoun, pronounced /ˈkɒnkleɪv/.

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 64653, this pair ranks #76,635 of 530,003 scored English confusable pairs - among the most confusable pairs.

Orthographic DNA of concave vs conclave

Shared letters: acenov. Private to "concave": -. Private to "conclave": l.

"concave" · 7 letters · shape CVCCVCV  ·  "conclave" · 8 letters · shape CVCCCVCV

Known mistypes of this pair

  • concavecconcave · cnocave · cocnave · conacve · concaev · concavve · conccave · concvae
  • conclavecconclave · cnoclave · cocnlave · concalve · concclave · conclaev · conclavve · concllave

Frequently Asked Questions

Can "concave" and "conclave" be used interchangeably?
No - they are not even the same part of speech. "concave" is an adjective and "conclave" a noun, so a sentence built for one is usually ungrammatical with the other.
Which is more common, "concave" or "conclave"?
"concave" is the more common of the two: it sits at frequency rank #28,155 in our English list, against #36,498 for "conclave". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

After this comparison

Eye-level mix-up between "concave" and "conclave" is sorted above. Next: full entries or other pairs that share a letter shape.

  • Full dictionary entry for "concave" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "conclave" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #76,635 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
  • "concave" and "conclave" also get mixed up with nearby pairs, the highest-scored neighbour is "conceive vs conclave". 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 #76,635 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