fatalvsfattyTell them apart

Which to use

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

#6,051
“fatal” frequency rank
#9,607
“fatty” frequency rank
15658
confusion score

Side-by-Side Comparison

Feature fatal fatty
Definition Proceeding from, or appointed by, fate or destiny. Containing, composed of, or consisting of fat.

Where the eye mixes fatal and fatty

Muted = shared; highlighted = the visual trap. They share 3 letters in sequence.

5 ch
fatal
5 ch
fatty

Visual trap between fatal and fatty

A purely visual mix-up. fatal (/ˈfeɪ.təl/) and fatty (/ˈfæt.i/) 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 15658, derived from the frequency rank of both members and their visual similarity.

fatal is recorded at frequency rank #6,051, classified as anadj, pronounced /ˈfeɪ.təl/. fatty is at rank #9,607, tagged as anadj, pronounced /ˈfæt.i/.

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 15658, this pair ranks #462,615 of 530,003 scored English confusable pairs - a relatively easy-to-tell-apart pair.

Orthographic DNA of fatal vs fatty

Shared letters: aft. Private to "fatal": l. Private to "fatty": y.

"fatal" · 5 letters · shape CVCVC  ·  "fatty" · 5 letters · shape CVCCV

Known mistypes of this pair

  • fatalaftal · faatl · fatall · fatla · fattal · ffatal · ftaal
  • fattyaftty · fattyy · faty · fatyt · ffatty · ftaty

Frequently Asked Questions

Do "fatal" and "fatty" mean the same thing in a sentence?
No. They are said differently (/ˈfeɪ.təl/ versus /ˈfæt.i/) and carry different meanings; reading the sentence aloud is usually enough to catch the wrong one.
Which is more common, "fatal" or "fatty"?
"fatal" is the more common of the two: it sits at frequency rank #6,051 in our English list, against #9,607 for "fatty". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

What to do next

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

  • Full dictionary entry for "fatal" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "fatty" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #462,615 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
  • "fatal" and "fatty" also get mixed up with nearby pairs, the highest-scored neighbour is "Fata vs fatty". 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 #462,615 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