lisvsLSDConfusable pair

Which to use

“lis” and “LSD” are a confusable Spanish pair: similar on the page, but distinct in meaning, check the gloss before you choose.

#20,413
“lis” frequency rank
#30,142
“LSD” frequency rank
50555
confusion score

Side-by-Side Comparison

Feature lis LSD
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. Droga psicodélica semisintética que se obtiene de la ergolina y de la familia de las triptaminas que produce efectos psicológicos, entre los que se incluyen alucinaciones con ojos abiertos y cerrados, sinestesia, percepción distorsionada del tiempo y disolución del ego; generalmente utilizada como droga recreacional y dosificada en forma de un trozo de cartón que contiene la sustancia en sí.

Where the eye mixes lis and LSD

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

3 ch
lis
3 ch
LSD

Look-alike desk: lis vs LSD

A purely visual mix-up. lis ([ˈlis]) and LSD ([ˈlsð̞]) are said differently, so reading them aloud is the quickest way to catch the wrong one. On the page they stay close: they share most of their letters but differ in 2 positions. Our composite confusion score for this pair is 50555, 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]. LSD is at rank #30,142, tagged as anoun, pronounced [ˈlsð̞].

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 50555, this pair ranks #102,578 of 323,831 scored Spanish confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of lis vs LSD

Shared letters: ls. Private to "lis": i. Private to "LSD": d.

"lis" · 3 letters · shape CVC  ·  "LSD" · 3 letters · shape CCC

Frequently Asked Questions

Can "lis" and "LSD" be used interchangeably?
No. They are said differently ([ˈlis] versus [ˈlsð̞]) and carry different meanings; reading the sentence aloud is usually enough to catch the wrong one.
Which is more common, "lis" or "LSD"?
"lis" is the more common of the two: it sits at frequency rank #20,413 in our Spanish list, against #30,142 for "LSD". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

Useful next steps

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 "LSD" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #102,578 of 323,831 scored Spanish confusable pairs in this corpus vintage. Corpus statistics
  • "lis" and "LSD" also get mixed up with nearby pairs, the highest-scored neighbour is "lac vs LSD". Nearby pair

Confusion rank #102,578 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