BLMvsbutConfusable pair

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

Which to use

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

#17,556
“BLM” frequency rank
#25
“but” frequency rank
17581
confusion score

Side-by-Side Comparison

Feature BLM but
Definition Initialism of Bureau of Land Management: an agency within the United States Department of the Interior responsible for administering public lands, created in 1946. Apart from, except (for), excluding.

Letter map: BLM vs but

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

3 ch
BLM
3 ch
but

Part-of-speech tell for BLM / but

Our dataset has no pronunciation recorded for both members, so the reliable separator here is grammatical: BLM is aname and butapreposition. On the page they share most of their letters but differ in 2 positions. Our composite confusion score for this pair is 17581, derived from the frequency rank of both members and their visual similarity.

BLM is recorded at frequency rank #17,556, 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 17581, this pair ranks #450,461 of 530,003 scored English confusable pairs - a relatively easy-to-tell-apart pair.

Orthographic DNA of BLM vs but

Shared letters: b. Private to "BLM": lm. Private to "but": tu.

"BLM" · 3 letters · shape CCC  ·  "but" · 3 letters · shape CVC

Frequently Asked Questions

Is swapping "BLM" for "but" ever safe?
No - they are not even the same part of speech. "BLM" is a name and "but" a preposition, so a sentence built for one is usually ungrammatical with the other.
In ordinary English text, does "BLM" or "but" show up more?
"but" is the more common of the two: it sits at frequency rank #25 in our English list, against #17,556 for "BLM". That is a wide gap, so in ordinary text the rarer spelling is the one worth double-checking.

Useful next steps

Pair "BLM" vs "but" is on the table, pick a follow-up below.

  • Full dictionary entry for "BLM" 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 #450,461 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
  • "BLM" and "but" also get mixed up with nearby pairs, the highest-scored neighbour is "BFS vs BLM". Nearby pair

Confusion rank #450,461 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