fajovsfalloWhat's the difference?

Quick tell: fajo is a noun, fallo is an adjective, so they fill different roles in a sentence.

Which to use

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

#43,590
“fajo” frequency rank
#3,410
“fallo” frequency rank
47000
confusion score

Side-by-Side Comparison

Feature fajo fallo
Definition Haz o atado. En algunos juegos de naipes, falto de algún palo.

Where the eye mixes fajo and fallo

Muted = shared; highlighted = the visual trap. They share 3 letters in sequence. fajo runs 4 letters (CVCV) against fallo's 5 (CVCCV) - the length gap alone is often enough to separate them once you know to check it.

4 ch
fajo
5 ch
fallo

Why the eye confuses fajo with fallo

These two trip readers on the page rather than in the ear: fajo is [ˈfaxo] while fallo is [ˈfaʝo]. 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 (noun vs adjective), which is usually the fastest check. Our composite confusion score for this pair is 47000, derived from the frequency rank of both members and their visual similarity.

fajo is recorded at frequency rank #43,590, classified as anoun, pronounced [ˈfaxo]. fallo is at rank #3,410, tagged as anadj, pronounced [ˈfaʝo].

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 47000, this pair ranks #122,545 of 323,831 scored Spanish confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of fajo vs fallo

Shared letters: afo. Private to "fajo": j. Private to "fallo": l.

"fajo" · 4 letters · shape CVCV  ·  "fallo" · 5 letters · shape CVCCV

Known mistypes of this pair

  • fajo ← afjo · fajjo · faoj · ffajo · fjao
  • fallo ← afllo · falol · ffallo · flalo

Frequently Asked Questions

Is swapping "fajo" for "fallo" ever safe?
No - they are not even the same part of speech. "fajo" is a noun and "fallo" an adjective, so a sentence built for one is usually ungrammatical with the other.
In ordinary Spanish text, does "fajo" or "fallo" show up more?
"fallo" is the more common of the two: it sits at frequency rank #3,410 in our Spanish list, against #43,590 for "fajo". That is a wide gap, so in ordinary text the rarer spelling is the one worth double-checking.

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 "fajo" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "fallo" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #122,545 of 323,831 scored Spanish confusable pairs in this corpus vintage. Corpus statistics
  • "fajo" and "fallo" also get mixed up with nearby pairs, the highest-scored neighbour is "facho vs fajo". 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 #122,545 of 323,831 scored Spanish pairs, corpus vintage 2026-09-03, not spelling advice.

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

Source: FrequencyWords open word-frequency list