BLM vs by, What's the Difference?

Which to use

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

#17,556
“BLM” frequency rank: #24
“by” frequency rank: 17580
confusion score

Side-by-Side Comparison

Feature	BLM	by
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.	Near or next to.

Letter map: BLM vs by

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

3 ch

BLM

2 ch

Grammar separator: BLM vs by

Our dataset has no pronunciation recorded for both members, so the reliable separator here is grammatical: BLM is aname and byapreposition. On the page they differ by 1 letter(s) in length. Our composite confusion score for this pair is 17580, derived from the frequency rank of both members and their visual similarity.

BLM is recorded at frequency rank #17,556, classified as aname. by is at rank #24, tagged as aprep, pronounced /baɪ/.

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 17580, this pair ranks #450,467 of 530,003 scored English confusable pairs - a relatively easy-to-tell-apart pair.

Orthographic DNA of BLM vs by

Shared letters: b. Private to "BLM": lm. Private to "by": y.

"BLM" · 3 letters · shape CCC · "by" · 2 letters · shape CV

Frequently Asked Questions

Is swapping "BLM" for "by" ever safe?

No - they are not even the same part of speech. "BLM" is a name and "by" a preposition, so a sentence built for one is usually ungrammatical with the other.

In ordinary English text, does "BLM" or "by" show up more?

"by" is the more common of the two: it sits at frequency rank #24 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

Done with this confusable. These links stay specific to "BLM" and "by".

Full dictionary entry for "BLM" with definition, IPA, and generated misspellings. Word entry
Full dictionary entry for "by" - compare definitions side by side with the headword page. Word entry
This pair ranks #450,467 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
"BLM" and "by" also get mixed up with nearby pairs, the highest-scored neighbour is "BFS vs BLM". Nearby pair

Confusion rank #450,467 of 530,003 scored English pairs, corpus vintage 2026-09-03, not spelling advice.