obligarvsobligoWhich spelling fits?

Which to use

“obligar” and “obligo” are a confusable Spanish pair: similar on the page, but distinct in meaning, check the gloss before you choose.

#9,002
“obligar” frequency rank
#31,023
“obligo” frequency rank
40025
confusion score

Side-by-Side Comparison

Feature obligar obligo
Definition Atar, ligar, precisar, mover eficazmente a alguna cosa, aunque sea repugnante al gusto y genio del que la ha de ejecutar. Primera persona del singular (yo) del presente de indicativo de obligar o de obligarse.

Where the eye mixes obligar and obligo

Muted = shared; highlighted = the visual trap. They share 5 letters in sequence. obligar runs 7 letters (VCCVCVC) against obligo's 6 (VCCVCV) - the length gap alone is often enough to separate them once you know to check it.

7 ch
obligar
6 ch
obligo

Why the eye confuses obligar with obligo

A purely visual mix-up. obligar ([oβ̞liˈɣ̞aɾ]) and obligo ([oˈβ̞liɣ̞o]) 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 40025, derived from the frequency rank of both members and their visual similarity.

obligar is recorded at frequency rank #9,002, classified as averb, pronounced [oβ̞liˈɣ̞aɾ]. obligo is at rank #31,023, tagged as averb, pronounced [oˈβ̞liɣ̞o].

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 40025, this pair ranks #161,344 of 323,831 scored Spanish confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of obligar vs obligo

Shared letters: bgilo. Private to "obligar": ar. Private to "obligo": -.

"obligar" · 7 letters · shape VCCVCVC  ·  "obligo" · 6 letters · shape VCCVCV

Known mistypes of this pair

  • obligar ← boligar · obbligar · obilgar · oblgiar · obliagr · obligarr · obliggar · obligra
  • obligo ← boligo · obbligo · obilgo · oblgio · obliggo · obliog · oblligo · olbigo

Frequently Asked Questions

Can "obligar" and "obligo" be used interchangeably?
No. They are said differently ([oβ̞liˈɣ̞aɾ] versus [oˈβ̞liɣ̞o]) and carry different meanings; reading the sentence aloud is usually enough to catch the wrong one.
Which is more common, "obligar" or "obligo"?
"obligar" is the more common of the two: it sits at frequency rank #9,002 in our Spanish list, against #31,023 for "obligo". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

What to do next

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

  • Full dictionary entry for "obligar" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "obligo" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #161,344 of 323,831 scored Spanish confusable pairs in this corpus vintage. Corpus statistics
  • "obligar" and "obligo" also get mixed up with nearby pairs, the highest-scored neighbour is "obligo vs obligue". 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 #161,344 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