BLvsbutWhat's the difference?

Quick tell: BL is a name, but is a preposition, so they fill different roles in a sentence.

Which to use

“BL” is a name and “but” is a preposition - they look or sound alike but fill different roles in a sentence.

#17,773
“BL” frequency rank
#25
“but” frequency rank
17798
confusion score

Side-by-Side Comparison

Feature BL but
Definition Initialism of British Leyland. Apart from, except (for), excluding.

Letter map: BL vs but

Shared letters muted; letters that set BL and but apart highlighted. Shared run: 1.

2 ch
BL
3 ch
but

Role in the sentence - BL and but

Our dataset has no pronunciation recorded for both members, so the reliable separator here is grammatical: BL is aname and butapreposition. On the page they differ by 1 letter(s) in length. Our composite confusion score for this pair is 17798, derived from the frequency rank of both members and their visual similarity.

BL is recorded at frequency rank #17,773, classified as aname. but is at rank #25, tagged as aprep, pronounced /ˈbʌt/.

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 17798, this pair ranks #449,050 of 530,003 scored English confusable pairs - a relatively easy-to-tell-apart pair.

Orthographic DNA of BL vs but

Shared letters: b. Private to "BL": l. Private to "but": tu.

"BL" · 2 letters · shape CC  ·  "but" · 3 letters · shape CVC

Frequently Asked Questions

Do "BL" and "but" mean the same thing in a sentence?
No - they are not even the same part of speech. "BL" is a name and "but" a preposition, so a sentence built for one is usually ungrammatical with the other.
Frequency check: "BL" vs "but" - which ranks higher?
"but" is the more common of the two: it sits at frequency rank #25 in our English list, against #17,773 for "BL". That is a wide gap, so in ordinary text the rarer spelling is the one worth double-checking.

What to do next

You've compared "BL" and "but". Here's where to go from here.

  • Full dictionary entry for "BL" 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 #449,050 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
  • "BL" and "but" also get mixed up with nearby pairs, the highest-scored neighbour is "BFS vs BL". Nearby pair

Confusion rank #449,050 of 530,003 scored English pairs, corpus vintage 2026-09-03, not spelling advice.

Source: Wiktionary (via kaikki.org) Structured Wiktionary extract

Source: FrequencyWords open word-frequency list