logvslunWhich spelling fits?

Quick tell: log is a noun, lun is an adjective, so they fill different roles in a sentence.

Which to use

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

#29,283
“log” frequency rank
#37,198
“lun” frequency rank
66481
confusion score

Side-by-Side Comparison

Feature log lun
Definition Tronco, leño. Flácido, suave, débil.

Where the eye mixes log and lun

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

3 ch
log
3 ch
lun

Visual trap between log and lun

These two trip readers on the page rather than in the ear: log is /lɒɡ/ while lun is [lun]. 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 adjective), which is usually the fastest check. Our composite confusion score for this pair is 66481, 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/. lun is at rank #37,198, tagged as anadj, pronounced [lun].

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 66481, this pair ranks #39,756 of 323,831 scored Spanish confusable pairs - among the most confusable pairs.

Orthographic DNA of log vs lun

Shared letters: l. Private to "log": go. Private to "lun": nu.

"log" · 3 letters · shape CVC  ·  "lun" · 3 letters · shape CVC

Frequently Asked Questions

Is swapping "log" for "lun" ever safe?
No - they are not even the same part of speech. "log" is a noun and "lun" an adjective, so a sentence built for one is usually ungrammatical with the other.
Which is more common, "log" or "lun"?
"log" is the more common of the two: it sits at frequency rank #29,283 in our Spanish list, against #37,198 for "lun". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

What to do next

Eye-level mix-up between "log" and "lun" 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 "lun" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #39,756 of 323,831 scored Spanish confusable pairs in this corpus vintage. Corpus statistics
  • "log" and "lun" also get mixed up with nearby pairs, the highest-scored neighbour is "lac vs lun". Nearby pair

Confusion rank #39,756 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