b vs but, What's the Difference?

Which to use

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

#602
“b” frequency rank: #11,178
“but” frequency rank: 11780
confusion score

Side-by-Side Comparison

Feature	b	but
Definition	Segunda letra del abecedario español y primera consonante. Su nombre es be, be alta o be larga.	Muy.

Where the eye mixes b and but

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

1 ch

3 ch

but

Why the eye confuses b with but

These two trip readers on the page rather than in the ear: b is [ˈbe] while but is [ˈbut̪]. Spoken aloud the problem disappears. In writing it persists, because they differ by 2 extra letter(s) - “b” sits inside “but”, and the parts of speech differ too (character vs adverb), which is usually the fastest check. Our composite confusion score for this pair is 11780, derived from the frequency rank of both members and their visual similarity.

b is recorded at frequency rank #602, classified as acharacter, pronounced [ˈbe]. 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 11780, this pair ranks #293,916 of 323,831 scored Spanish confusable pairs - a relatively easy-to-tell-apart pair.

Orthographic DNA of b vs but

Shared letters: b. Private to "b": -. Private to "but": tu.

"b" · 1 letters · shape C · "but" · 3 letters · shape CVC

Frequently Asked Questions

Do "b" and "but" mean the same thing in a sentence?

No - they are not even the same part of speech. "b" is a character and "but" an adverb, so a sentence built for one is usually ungrammatical with the other.

Frequency check: "b" vs "but" - which ranks higher?

"b" is the more common of the two: it sits at frequency rank #602 in our Spanish list, against #11,178 for "but". That is a wide gap, so in ordinary text the rarer spelling is the one worth double-checking.

Useful next steps

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

Full dictionary entry for "b" 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 #293,916 of 323,831 scored Spanish confusable pairs in this corpus vintage. Corpus statistics
"b" and "but" also get mixed up with nearby pairs, the highest-scored neighbour is "but vs butt". Nearby pair

Confusion rank #293,916 of 323,831 scored Spanish pairs, corpus vintage 2026-09-03, not spelling advice.