contraervscontrajoWhat's the difference?

Which to use

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

#15,328
“contraer” frequency rank
#19,968
“contrajo” frequency rank
35296
confusion score

Side-by-Side Comparison

Feature contraer contrajo
Definition Hacer que se ocupe un menor volumen, un menor espacio, sin pérdida de masa, eventualmente aumentando la densidad. Tercera persona del singular (él, ella, ello; usted, 2.ª persona) del pretérito perfecto simple de indicativo de contraer o de contraerse.

Where the eye mixes contraer and contrajo

Muted = shared; highlighted = the visual trap. They share 6 letters in sequence. contraer (CVCCCVVC) and contrajo (CVCCCVCV) run the same length but a different consonant-vowel pattern - the shape difference is usually the fastest tell.

8 ch
contraer
8 ch
contrajo

Why the eye confuses contraer with contrajo

A purely visual mix-up. contraer ([kõn̪t̪ɾaˈeɾ]) and contrajo ([kõn̪ˈt̪ɾaxo]) 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 35296, derived from the frequency rank of both members and their visual similarity.

contraer is recorded at frequency rank #15,328, classified as averb, pronounced [kõn̪t̪ɾaˈeɾ]. contrajo is at rank #19,968, tagged as averb, pronounced [kõn̪ˈt̪ɾaxo].

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 35296, this pair ranks #186,841 of 323,831 scored Spanish confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of contraer vs contrajo

Shared letters: acnort. Private to "contraer": e. Private to "contrajo": j.

"contraer" · 8 letters · shape CVCCCVVC  ·  "contrajo" · 8 letters · shape CVCCCVCV

Known mistypes of this pair

  • contraer ← ccontraer · cnotraer · conntraer · conrtaer · contarer · contraerr · contrare · contrear
  • contrajo ← ccontrajo · cnotrajo · conntrajo · conrtajo · contarjo · contrajjo · contraoj · contrjao

Frequently Asked Questions

Can "contraer" and "contrajo" be used interchangeably?
No. They are said differently ([kõn̪t̪ɾaˈeɾ] versus [kõn̪ˈt̪ɾaxo]) and carry different meanings; reading the sentence aloud is usually enough to catch the wrong one.
Which is more common, "contraer" or "contrajo"?
"contraer" is the more common of the two: it sits at frequency rank #15,328 in our Spanish list, against #19,968 for "contrajo". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

After this comparison

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

  • Full dictionary entry for "contraer" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "contrajo" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #186,841 of 323,831 scored Spanish confusable pairs in this corpus vintage. Corpus statistics
  • "contraer" and "contrajo" also get mixed up with nearby pairs, the highest-scored neighbour is "contrabajo vs contrajo". 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 #186,841 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