fibvsfishWhich spelling fits?

Which to use

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

#43,642
“fib” frequency rank
#1,339
“fish” frequency rank
44981
confusion score

Side-by-Side Comparison

Feature fib fish
Definition A lie, especially one that is more or less inconsequential. A typically cold-blooded vertebrate animal that lives in water, moving with the help of fins and breathing with gills.

Where the eye mixes fib and fish

Muted = shared; highlighted = the visual trap. They share 2 letters in sequence. fib runs 3 letters (CVC) against fish's 4 (CVCC) - the length gap alone is often enough to separate them once you know to check it.

3 ch
fib
4 ch
fish

Why the eye confuses fib with fish

A purely visual mix-up. fib (/fɪb/) and fish (/ˈfɪʃ/) are said differently, so reading them aloud is the quickest way to catch the wrong one. On the page they stay close: they differ by 1 letter(s) in length. Our composite confusion score for this pair is 44981, derived from the frequency rank of both members and their visual similarity.

fib is recorded at frequency rank #43,642, classified as anoun, pronounced /fɪb/. fish is at rank #1,339, tagged as anoun, pronounced /ˈfɪʃ/.

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 44981, this pair ranks #225,540 of 530,003 scored English confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of fib vs fish

Shared letters: fi. Private to "fib": b. Private to "fish": hs.

"fib" · 3 letters · shape CVC  ·  "fish" · 4 letters · shape CVCC

Known mistypes of this pair

  • fish ← ffish · fihs · fishh · fissh · fsih · ifsh

Frequently Asked Questions

Can "fib" and "fish" be used interchangeably?
No. They are said differently (/fɪb/ versus /ˈfɪʃ/) and carry different meanings; reading the sentence aloud is usually enough to catch the wrong one.
In ordinary English text, does "fib" or "fish" show up more?
"fish" is the more common of the two: it sits at frequency rank #1,339 in our English list, against #43,642 for "fib". That is a wide gap, so in ordinary text the rarer spelling is the one worth double-checking.

What to do next

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

  • Full dictionary entry for "fib" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "fish" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #225,540 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
  • "fib" and "fish" also get mixed up with nearby pairs, the highest-scored neighbour is "fib vs foh". 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 #225,540 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