bnvsbyWhat's the difference?

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

Which to use

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

#18,251
“bn” frequency rank
#24
“by” frequency rank
18275
confusion score

Side-by-Side Comparison

Feature bn by
Definition Billion. Near or next to.

Letter map: bn vs by

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

2 ch
bn
2 ch
by

Role in the sentence - bn and by

Our dataset has no pronunciation recorded for both members, so the reliable separator here is grammatical: bn is asymbol and byapreposition. On the page they differ by a single letter - n in “bn” becomes y in “by”. Our composite confusion score for this pair is 18275, derived from the frequency rank of both members and their visual similarity.

bn is recorded at frequency rank #18,251, classified as asymbol. 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 18275, this pair ranks #445,974 of 530,003 scored English confusable pairs - a relatively easy-to-tell-apart pair.

Orthographic DNA of bn vs by

Shared letters: b. Private to "bn": n. Private to "by": y.

"bn" · 2 letters · shape CC  ·  "by" · 2 letters · shape CV

Frequently Asked Questions

Do "bn" and "by" mean the same thing in a sentence?
No - they are not even the same part of speech. "bn" is a symbol and "by" a preposition, so a sentence built for one is usually ungrammatical with the other.
In ordinary English text, does "bn" or "by" show up more?
"by" is the more common of the two: it sits at frequency rank #24 in our English list, against #18,251 for "bn". That is a wide gap, so in ordinary text the rarer spelling is the one worth double-checking.

After this comparison

Pair "bn" vs "by" is on the table, pick a follow-up below.

  • Full dictionary entry for "bn" 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 #445,974 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
  • "bn" and "by" also get mixed up with nearby pairs, the highest-scored neighbour is "BFS vs bn". Nearby pair

Confusion rank #445,974 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