caldovscastoConfusable pair

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

Which to use

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

#10,991
“caldo” frequency rank
#44,616
“casto” frequency rank
55607
confusion score

Side-by-Side Comparison

Feature caldo casto
Definition Se llama así al líquido en que ha sido cocinada una vianda. Persona que se abstiene de todo goce sexual o lo vive de acuerdo a ciertas directrices dictadas por su religión o su moral.

Where the eye mixes caldo and casto

Muted = shared; highlighted = the visual trap. They share 3 letters in sequence. caldo and casto follow the identical consonant-vowel pattern (CVCCV). Same shape at a glance is often the real trap, independent of shared letters.

5 ch
caldo
5 ch
casto

Visual trap between caldo and casto

These two trip readers on the page rather than in the ear: caldo is [ˈkal̪d̪o] while casto is [ˈkast̪o]. 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 55607, derived from the frequency rank of both members and their visual similarity.

caldo is recorded at frequency rank #10,991, classified as anoun, pronounced [ˈkal̪d̪o]. casto is at rank #44,616, tagged as anadj, pronounced [ˈkast̪o].

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 55607, this pair ranks #78,142 of 323,831 scored Spanish confusable pairs - among the most confusable pairs.

Orthographic DNA of caldo vs casto

Shared letters: aco. Private to "caldo": dl. Private to "casto": st.

"caldo" · 5 letters · shape CVCCV  ·  "casto" · 5 letters · shape CVCCV

Known mistypes of this pair

  • caldo ← acldo · cadlo · calddo · calldo · calod · ccaldo · clado
  • casto ← acsto · casot · cassto · castto · catso · ccasto · csato

Frequently Asked Questions

Do "caldo" and "casto" mean the same thing in a sentence?
No - they are not even the same part of speech. "caldo" is a noun and "casto" an adjective, so a sentence built for one is usually ungrammatical with the other.
Which is more common, "caldo" or "casto"?
"caldo" is the more common of the two: it sits at frequency rank #10,991 in our Spanish list, against #44,616 for "casto". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

What to do next

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

  • Full dictionary entry for "caldo" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "casto" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #78,142 of 323,831 scored Spanish confusable pairs in this corpus vintage. Corpus statistics
  • "caldo" and "casto" also get mixed up with nearby pairs, the highest-scored neighbour is "casto vs Chasco". 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 #78,142 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