BMPvsbyTell them apart

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

Which to use

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

#42,550
“BMP” frequency rank
#24
“by” frequency rank
42574
confusion score

Side-by-Side Comparison

Feature BMP by
Definition Initialism of Basic Multilingual Plane, one of the sets of character codepoints in Unicode, formally known as Plane 0; the conventional full set of all characters in basic Unicode, using the 65,536-codepoint range from U+0000 through U+FFFF. Near or next to.

Letter map: BMP vs by

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

3 ch
BMP
2 ch
by

Role in the sentence - BMP and by

Our dataset has no pronunciation recorded for both members, so the reliable separator here is grammatical: BMP is aname and byapreposition. On the page they differ by 1 letter(s) in length. Our composite confusion score for this pair is 42574, derived from the frequency rank of both members and their visual similarity.

BMP is recorded at frequency rank #42,550, 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 42574, this pair ranks #247,953 of 530,003 scored English confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of BMP vs by

Shared letters: b. Private to "BMP": mp. Private to "by": y.

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

Frequently Asked Questions

Can "BMP" and "by" be used interchangeably?
No - they are not even the same part of speech. "BMP" is a name and "by" a preposition, so a sentence built for one is usually ungrammatical with the other.
Frequency check: "BMP" vs "by" - which ranks higher?
"by" is the more common of the two: it sits at frequency rank #24 in our English list, against #42,550 for "BMP". 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 "BMP" and "by".

  • Full dictionary entry for "BMP" 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 #247,953 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
  • "BMP" and "by" also get mixed up with nearby pairs, the highest-scored neighbour is "BFS vs BMP". Nearby pair

Confusion rank #247,953 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