levsLuWhat's the difference?

Quick tell: le is a article, Lu is a name, so they fill different roles in a sentence.

Which to use

“le” is an article and “Lu” is a name - they look or sound alike but fill different roles in a sentence.

#3
“le” frequency rank
#1,333
“Lu” frequency rank
1336
confusion score

Side-by-Side Comparison

Feature le Lu
Definition Ce… dont on parle maintenant. Déterminant marquant un nom masculin singulier, référant à une seule entité possible dans un contexte. Commune de la province d’Alexandrie dans le Piémont en Italie.

Where the eye mixes le and Lu

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

2 ch
le
2 ch
Lu

Spelling & Dictionary Insight

These two trip readers on the page rather than in the ear: le is \lə\ while Lu is \ly\. Spoken aloud the problem disappears. In writing it persists, because they differ by a single letter - e in “le” becomes u in “Lu”, and the parts of speech differ too (article vs name), which is usually the fastest check. Our composite confusion score for this pair is 1336, derived from the frequency rank of both members and their visual similarity.

le is recorded at frequency rank #3, classified as anarticle, pronounced \lə\. Lu is at rank #1,333, tagged as aname, pronounced \ly\.

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 1336, this pair ranks #438,248 of 440,172 scored French confusable pairs - a relatively easy-to-tell-apart pair.

Orthographic DNA of le vs Lu

Shared letters: l. Private to "le": e. Private to "Lu": u.

"le" · 2 letters · shape CV  ·  "Lu" · 2 letters · shape CV

Frequently Asked Questions

Can "le" and "Lu" be used interchangeably?
No - they are not even the same part of speech. "le" is an article and "Lu" a name, so a sentence built for one is usually ungrammatical with the other.
Which is more common, "le" or "Lu"?
"le" is the more common of the two: it sits at frequency rank #3 in our French list, against #1,333 for "Lu". That is a wide gap, so in ordinary text the rarer spelling is the one worth double-checking.

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

Source: FrequencyWords open word-frequency list