bajovsbaseWhich spelling fits?

Quick tell: bajo is a preposition, base is a noun, so they fill different roles in a sentence.

Which to use

“bajo” is a preposition and “base” is a noun - they look or sound alike but fill different roles in a sentence.

#207
“bajo” frequency rank
#428
“base” frequency rank
635
confusion score

Side-by-Side Comparison

Feature bajo base
Definition Denota una posición inferior. Parte inferior de un cuerpo que le sirve de soporte.

Where the eye mixes bajo and base

Muted = shared; highlighted = the visual trap. They share 2 letters in sequence.

4 ch
bajo
4 ch
base

Visual trap between bajo and base

These two trip readers on the page rather than in the ear: bajo is [ˈbaxo] while base is [ˈbase]. Spoken aloud the problem disappears. In writing it persists, because they share most of their letters but differ in 2 positions, and the parts of speech differ too (preposition vs noun), which is usually the fastest check. Our composite confusion score for this pair is 635, derived from the frequency rank of both members and their visual similarity.

bajo is recorded at frequency rank #207, classified as aprep, pronounced [ˈbaxo]. base is at rank #428, tagged as anoun, pronounced [ˈbase].

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 635, this pair ranks #323,167 of 323,831 scored Spanish confusable pairs - a relatively easy-to-tell-apart pair.

Orthographic DNA of bajo vs base

Shared letters: ab. Private to "bajo": jo. Private to "base": es.

"bajo" · 4 letters · shape CVCV  ·  "base" · 4 letters · shape CVCV

Known mistypes of this pair

  • bajoabjo · bajjo · baoj · bbajo · bjao · vajo
  • baseabse · bace · baes · basse · bbase · bsae · vase

Frequently Asked Questions

Can "bajo" and "base" be used interchangeably?
No - they are not even the same part of speech. "bajo" is a preposition and "base" a noun, so a sentence built for one is usually ungrammatical with the other.
In ordinary Spanish text, does "bajo" or "base" show up more?
"bajo" is the more common of the two: it sits at frequency rank #207 in our Spanish list, against #428 for "base". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

What to do next

Pronunciation already separates them, if the page still looks alike, the dictionary links below settle it.

  • Full dictionary entry for "bajo" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "base" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #323,167 of 323,831 scored Spanish confusable pairs in this corpus vintage. Corpus statistics
  • "bajo" and "base" also get mixed up with nearby pairs, the highest-scored neighbour is "base vs brie". 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 #323,167 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