BT vs by, What's the Difference?

Which to use

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

#25,234
“BT” frequency rank: #2,462
“by” frequency rank: 27696
confusion score

Side-by-Side Comparison

Feature	BT	by
Definition	Basse tension.	Fossé qui traverse un étang, aboutissant à sa bonde.

Where the eye mixes BT and by

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

2 ch

Visual trap between BT and by

A purely visual mix-up. BT (\be.te\) 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 - t in “BT” becomes y in “by”. Our composite confusion score for this pair is 27696, derived from the frequency rank of both members and their visual similarity.

BT is recorded at frequency rank #25,234, classified as anoun, pronounced \be.te\. 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 27696, this pair ranks #327,379 of 440,172 scored French confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of BT vs by

Shared letters: b. Private to "BT": t. Private to "by": y.

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

Frequently Asked Questions

Do "BT" and "by" mean the same thing in a sentence?

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

Frequency check: "BT" vs "by" - which ranks higher?

"by" is the more common of the two: it sits at frequency rank #2,462 in our French list, against #25,234 for "BT". That is a wide gap, so in ordinary text the rarer spelling is the one worth double-checking.

Useful next steps

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

Full dictionary entry for "BT" 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 #327,379 of 440,172 scored French confusable pairs in this corpus vintage. Corpus statistics
"BT" and "by" also get mixed up with nearby pairs, the highest-scored neighbour is "ber vs BT". Nearby pair

Confusion rank #327,379 of 440,172 scored French pairs, corpus vintage 2026-09-03, not spelling advice.