logvsluiConfusable pair

Quick tell: log is a noun, lui is a verb, so they fill different roles in a sentence.

Which to use

“log” is a noun and “lui” is a verb - they look or sound alike but fill different roles in a sentence.

#29,283
“log” frequency rank
#36,659
“lui” frequency rank
65942
confusion score

Side-by-Side Comparison

Feature log lui
Definition Tronco, leño. Primera persona del singular (yo) del pretérito perfecto simple de indicativo de luir.

Where the eye mixes log and lui

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

3 ch
log
3 ch
lui

Why the eye confuses log with lui

These two trip readers on the page rather than in the ear: log is /lɒɡ/ while lui is [ˈlwi]. Spoken aloud the problem disappears. In writing it persists, because they share most of their letters but differ in 2 positions, and the parts of speech differ too (noun vs verb), which is usually the fastest check. Our composite confusion score for this pair is 65942, derived from the frequency rank of both members and their visual similarity.

log is recorded at frequency rank #29,283, classified as anoun, pronounced /lɒɡ/. lui is at rank #36,659, tagged as averb, pronounced [ˈlwi].

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 65942, this pair ranks #41,212 of 323,831 scored Spanish confusable pairs - among the most confusable pairs.

Orthographic DNA of log vs lui

Shared letters: l. Private to "log": go. Private to "lui": iu.

"log" · 3 letters · shape CVC  ·  "lui" · 3 letters · shape CVV

Frequently Asked Questions

Do "log" and "lui" mean the same thing in a sentence?
No - they are not even the same part of speech. "log" is a noun and "lui" a verb, so a sentence built for one is usually ungrammatical with the other.
Frequency check: "log" vs "lui" - which ranks higher?
"log" is the more common of the two: it sits at frequency rank #29,283 in our Spanish list, against #36,659 for "lui". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

After this comparison

Eye-level mix-up between "log" and "lui" is sorted above. Next: full entries or other pairs that share a letter shape.

  • Full dictionary entry for "log" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "lui" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #41,212 of 323,831 scored Spanish confusable pairs in this corpus vintage. Corpus statistics
  • "log" and "lui" also get mixed up with nearby pairs, the highest-scored neighbour is "lac vs lui". Nearby pair

Confusion rank #41,212 of 323,831 scored Spanish pairs, corpus vintage 2026-09-03, not spelling advice.

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

Source: FrequencyWords open word-frequency list