lisvslusoWhich spelling fits?

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

Which to use

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

#20,413
“lis” frequency rank
#44,297
“luso” frequency rank
64710
confusion score

Side-by-Side Comparison

Feature lis luso
Definition (Iris) Planta de la familia de las irídeas, formada por tallos que miden generalmente entre cinco y seis decímetros de largo, con hojas ensiformes que tienen cerca de la mitad de esa longitud, y que terminan en flores de gran tamaño, con seis pétalos de vivos colores, generalmente morado, azul o blanco. Originario, relativo a, o propio de Portugal.

Where the eye mixes lis and luso

Muted = shared; highlighted = the visual trap. They share 2 letters in sequence.

3 ch
lis
4 ch
luso

Look-alike desk: lis vs luso

These two trip readers on the page rather than in the ear: lis is [ˈlis] while luso is [ˈluso]. Spoken aloud the problem disappears. In writing it persists, because they differ by 1 letter(s) in length, and the parts of speech differ too (noun vs adjective), which is usually the fastest check. Our composite confusion score for this pair is 64710, derived from the frequency rank of both members and their visual similarity.

lis is recorded at frequency rank #20,413, classified as anoun, pronounced [ˈlis]. luso is at rank #44,297, tagged as anadj, pronounced [ˈluso].

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 64710, this pair ranks #44,800 of 323,831 scored Spanish confusable pairs - among the most confusable pairs.

Orthographic DNA of lis vs luso

Shared letters: ls. Private to "lis": i. Private to "luso": ou.

"lis" · 3 letters · shape CVC  ·  "luso" · 4 letters · shape CVCV

Known mistypes of this pair

  • lusolluso · lsuo · luos · lusso · ulso

Frequently Asked Questions

Do "lis" and "luso" mean the same thing in a sentence?
No - they are not even the same part of speech. "lis" is a noun and "luso" an adjective, so a sentence built for one is usually ungrammatical with the other.
Frequency check: "lis" vs "luso" - which ranks higher?
"lis" is the more common of the two: it sits at frequency rank #20,413 in our Spanish list, against #44,297 for "luso". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

After this comparison

Visual near-miss handled. Browse the word pages or a neighbour when the next look-alike shows up.

  • Full dictionary entry for "lis" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "luso" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #44,800 of 323,831 scored Spanish confusable pairs in this corpus vintage. Corpus statistics
  • "lis" and "luso" also get mixed up with nearby pairs, the highest-scored neighbour is "ledo vs luso". Nearby pair
  • Recorded mistypes exist for at least one side of this pair, useful when a spell-checker or OCR lands on the wrong form. See mistypes

Confusion rank #44,800 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