BS vs by, What's the Difference?

Which to use

“BS” and “by” are a confusable French pair: similar on the page, but distinct in meaning, check the gloss before you choose.

#24,503
“BS” frequency rank: #2,462
“by” frequency rank: 26965
confusion score

Side-by-Side Comparison

Feature	BS	by
Definition	Fils du frère. Neveu fraternel. On est pour son BS un FB ou une FZ.	Fossé qui traverse un étang, aboutissant à sa bonde.

Where the eye mixes BS and by

Muted = shared; highlighted = the visual trap. They share 1 letter in sequence.

2 ch

Visual trap between BS and by

A purely visual mix-up. BS (\be.ɛs\) and by (\bi\) are said differently, so reading them aloud is the quickest way to catch the wrong one. On the page they stay close: they differ by a single letter - s in “BS” becomes y in “by”. Our composite confusion score for this pair is 26965, derived from the frequency rank of both members and their visual similarity.

BS is recorded at frequency rank #24,503, classified as anoun, pronounced \be.ɛs\. by is at rank #2,462, tagged as anoun, pronounced \bi\.

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 26965, this pair ranks #331,791 of 440,172 scored French confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of BS vs by

Shared letters: b. Private to "BS": s. Private to "by": y.

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

Frequently Asked Questions

Can "BS" and "by" be used interchangeably?

No. They are said differently (\be.ɛs\ versus \bi\) and carry different meanings; reading the sentence aloud is usually enough to catch the wrong one.

Which is more common, "BS" or "by"?

"by" is the more common of the two: it sits at frequency rank #2,462 in our French list, against #24,503 for "BS". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

What to do next

Visual near-miss handled. Browse the word pages or a neighbour when the next look-alike shows up.

Full dictionary entry for "BS" 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 #331,791 of 440,172 scored French confusable pairs in this corpus vintage. Corpus statistics
"BS" and "by" also get mixed up with nearby pairs, the highest-scored neighbour is "ber vs BS". Nearby pair

Confusion rank #331,791 of 440,172 scored French pairs, corpus vintage 2026-09-03, not spelling advice.