lbvslutWhat's the difference?

Quick tell: lb is a symbol, lut is a noun, so they fill different roles in a sentence.

Which to use

“lb” is a symbol and “lut” is a noun - they look or sound alike but fill different roles in a sentence.

#22,921
“lb” frequency rank
#40,358
“lut” frequency rank
63279
confusion score

Side-by-Side Comparison

Feature lb lut
Definition Symbole de la livre (pound), unité de mesure de masse anglo-saxonne. Cette livre est ordinairement dans le système avoir-du-poids ; il y a aussi une livre apothicaire (apothecary pound ou troy pound) — les symboles respectifs sont lb av et lb t ou lb Tr. La livre française, elle, avait pour symbole lp. Se dit de pâtes ou d'enduits qu'on applique sur les bouchons des vases pour en assurer la fermeture hermétique, autour des cornues, des tubes de verre pour les soustraire à l'action directe du feu, ou qu'on utilise pour obturer des trous, pour faire des joints etc.

Letter map: lb vs lut

Shared letters muted; letters that set lb and lut apart highlighted. Shared run: 1.

2 ch
lb
3 ch
lut

Role in the sentence - lb and lut

Our dataset has no pronunciation recorded for both members, so the reliable separator here is grammatical: lb is asymbol and lutanoun. On the page they differ by 1 letter(s) in length. Our composite confusion score for this pair is 63279, derived from the frequency rank of both members and their visual similarity.

lb is recorded at frequency rank #22,921, classified as asymbol. lut is at rank #40,358, tagged as anoun, pronounced \lyt\.

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 63279, this pair ranks #82,785 of 440,172 scored French confusable pairs - among the most confusable pairs.

Orthographic DNA of lb vs lut

Shared letters: l. Private to "lb": b. Private to "lut": tu.

"lb" · 2 letters · shape CC  ·  "lut" · 3 letters · shape CVC

Frequently Asked Questions

Is swapping "lb" for "lut" ever safe?
No - they are not even the same part of speech. "lb" is a symbol and "lut" a noun, so a sentence built for one is usually ungrammatical with the other.
Frequency check: "lb" vs "lut" - which ranks higher?
"lb" is the more common of the two: it sits at frequency rank #22,921 in our French list, against #40,358 for "lut". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

Useful next steps

Done with this confusable. These links stay specific to "lb" and "lut".

  • Full dictionary entry for "lb" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "lut" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #82,785 of 440,172 scored French confusable pairs in this corpus vintage. Corpus statistics
  • "lb" and "lut" also get mixed up with nearby pairs, the highest-scored neighbour is "lep vs lut". Nearby pair

Confusion rank #82,785 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