bavsbutWhat's the difference?

Quick tell: ba is a preposition, but is an adverb, so they fill different roles in a sentence.

Which to use

“ba” is a preposition and “but” is an adverb - they look or sound alike but fill different roles in a sentence.

#8,617
“ba” frequency rank
#11,178
“but” frequency rank
19795
confusion score

Side-by-Side Comparison

Feature ba but
Definition En. Muy.

Where the eye mixes ba and but

Muted = shared; highlighted = the visual trap. They share 1 letter in sequence.

2 ch
ba
3 ch
but

Look-alike desk: ba vs but

These two trip readers on the page rather than in the ear: ba is /ba/ while but is [ˈbut̪]. 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 (preposition vs adverb), which is usually the fastest check. Our composite confusion score for this pair is 19795, derived from the frequency rank of both members and their visual similarity.

ba is recorded at frequency rank #8,617, classified as aprep, pronounced /ba/. but is at rank #11,178, tagged as anadv, pronounced [ˈbut̪].

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 19795, this pair ranks #262,161 of 323,831 scored Spanish confusable pairs - a relatively easy-to-tell-apart pair.

Orthographic DNA of ba vs but

Shared letters: b. Private to "ba": a. Private to "but": tu.

"ba" · 2 letters · shape CV  ·  "but" · 3 letters · shape CVC

Frequently Asked Questions

Is swapping "ba" for "but" ever safe?
No - they are not even the same part of speech. "ba" is a preposition and "but" an adverb, so a sentence built for one is usually ungrammatical with the other.
Which is more common, "ba" or "but"?
"ba" is the more common of the two: it sits at frequency rank #8,617 in our Spanish list, against #11,178 for "but". 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 "ba" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "but" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #262,161 of 323,831 scored Spanish confusable pairs in this corpus vintage. Corpus statistics
  • "ba" and "but" also get mixed up with nearby pairs, the highest-scored neighbour is "but vs butt". Nearby pair

Confusion rank #262,161 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