fissurevsfixtureTell them apart

Which to use

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

#36,143
“fissure” frequency rank
#11,696
“fixture” frequency rank
47839
confusion score

Side-by-Side Comparison

Feature fissure fixture
Definition A long, narrow crack or opening made by breaking or splitting, especially in rock or earth. Something that is fixed in place, especially a permanent appliance or other item of personal property that is considered part of a house and is sold with it; compare fitting, furnishing.

Where the eye mixes fissure and fixture

Muted = shared; highlighted = the visual trap. They share 5 letters in sequence. fissure and fixture follow the identical consonant-vowel pattern (CVCCVCV). Same shape at a glance is often the real trap, independent of shared letters.

7 ch
fissure
7 ch
fixture

Visual trap between fissure and fixture

A purely visual mix-up. fissure (/ˈfɪʃ.ə/) and fixture (/ˈfɪks.t͡ʃə/) 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 47839, derived from the frequency rank of both members and their visual similarity.

fissure is recorded at frequency rank #36,143, classified as anoun, pronounced /ˈfɪʃ.ə/. fixture is at rank #11,696, tagged as anoun, pronounced /ˈfɪks.t͡ʃə/.

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 47839, this pair ranks #198,717 of 530,003 scored English confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of fissure vs fixture

Shared letters: efiru. Private to "fissure": s. Private to "fixture": tx.

"fissure" · 7 letters · shape CVCCVCV  ·  "fixture" · 7 letters · shape CVCCVCV

Known mistypes of this pair

  • fissure ← ffissure · fissrue · fissuer · fissurre · fisure · fisusre · fsisure · ifssure
  • fixture ← ffixture · fitxure · fixtrue · fixtture · fixtuer · fixturre · fixutre · fixxture

Frequently Asked Questions

Is swapping "fissure" for "fixture" ever safe?
No. They are said differently (/ˈfɪʃ.ə/ versus /ˈfɪks.t͡ʃə/) and carry different meanings; reading the sentence aloud is usually enough to catch the wrong one.
Frequency check: "fissure" vs "fixture" - which ranks higher?
"fixture" is the more common of the two: it sits at frequency rank #11,696 in our English list, against #36,143 for "fissure". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

After this comparison

Visual near-miss handled. Browse the word pages or a neighbour when the next look-alike shows up.

  • Full dictionary entry for "fissure" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "fixture" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #198,717 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
  • "fissure" and "fixture" also get mixed up with nearby pairs, the highest-scored neighbour is "fissile vs fissure". 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 #198,717 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