bothvsbutTell them apart

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

Which to use

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

#37,462
“both” frequency rank
#11,178
“but” frequency rank
48640
confusion score

Side-by-Side Comparison

Feature both but
Definition Ambos, ambas. Muy.

Where the eye mixes both and but

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

4 ch
both
3 ch
but

Visual trap between both and but

These two trip readers on the page rather than in the ear: both is /bəʊɵ/ 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 (adjective vs adverb), which is usually the fastest check. Our composite confusion score for this pair is 48640, derived from the frequency rank of both members and their visual similarity.

both is recorded at frequency rank #37,462, classified as anadj, pronounced /bəʊɵ/. 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 48640, this pair ranks #113,325 of 323,831 scored Spanish confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of both vs but

Shared letters: bt. Private to "both": ho. Private to "but": u.

"both" · 4 letters · shape CVCC  ·  "but" · 3 letters · shape CVC

Known mistypes of this pair

  • bothbboth · boht · bothh · botth · btoh · obth · voth

Frequently Asked Questions

Can "both" and "but" be used interchangeably?
No - they are not even the same part of speech. "both" is an adjective and "but" an adverb, so a sentence built for one is usually ungrammatical with the other.
Which is more common, "both" or "but"?
"but" is the more common of the two: it sits at frequency rank #11,178 in our Spanish list, against #37,462 for "both". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

After this comparison

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

  • Full dictionary entry for "both" 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 #113,325 of 323,831 scored Spanish confusable pairs in this corpus vintage. Corpus statistics
  • "both" and "but" also get mixed up with nearby pairs, the highest-scored neighbour is "both vs butt". 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 #113,325 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