loivsLSDWhich spelling fits?

Which to use

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

#300
“loi” frequency rank
#26,788
“LSD” frequency rank
27088
confusion score

Side-by-Side Comparison

Feature loi LSD
Definition Règle, obligations écrites, prescrites ou tacites, auxquelles les personnes se doivent de se conformer. Composé organique de la famille des ergolines, le diéthylamide de l’acide lysergique, dérivé de l’acide lysergique présent dans l’ergot de seigle, connu comme un hallucinogène très puissant actif à de très faibles doses.

Where the eye mixes loi and LSD

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

3 ch
loi
3 ch
LSD

Look-alike desk: loi vs LSD

A purely visual mix-up. loi (\lwa\) and LSD (\ɛl.ɛs.de\) are said differently, so reading them aloud is the quickest way to catch the wrong one. On the page they stay close: they share most of their letters but differ in 2 positions. Our composite confusion score for this pair is 27088, derived from the frequency rank of both members and their visual similarity.

loi is recorded at frequency rank #300, classified as anoun, pronounced \lwa\. LSD is at rank #26,788, tagged as anoun, pronounced \ɛl.ɛs.de\.

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 27088, this pair ranks #331,150 of 440,172 scored French confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of loi vs LSD

Shared letters: l. Private to "loi": io. Private to "LSD": ds.

"loi" · 3 letters · shape CVV  ·  "LSD" · 3 letters · shape CCC

Frequently Asked Questions

Do "loi" and "LSD" mean the same thing in a sentence?
No. They are said differently (\lwa\ versus \ɛl.ɛs.de\) and carry different meanings; reading the sentence aloud is usually enough to catch the wrong one.
Which is more common, "loi" or "LSD"?
"loi" is the more common of the two: it sits at frequency rank #300 in our French list, against #26,788 for "LSD". That is a wide gap, so in ordinary text the rarer spelling is the one worth double-checking.

After this comparison

Pronunciation already separates them, if the page still looks alike, the dictionary links below settle it.

  • Full dictionary entry for "loi" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "LSD" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #331,150 of 440,172 scored French confusable pairs in this corpus vintage. Corpus statistics
  • "loi" and "LSD" also get mixed up with nearby pairs, the highest-scored neighbour is "lep vs LSD". Nearby pair

Confusion rank #331,150 of 440,172 scored French pairs, corpus vintage 2026-09-03, not spelling advice.

Source: Wiktionary (via kaikki.org) Structured Wiktionary extract

Source: FrequencyWords open word-frequency list