CoreavscostaTell them apart

Quick tell: Corea is a name, costa is a noun, so they fill different roles in a sentence.

Which to use

“Corea” is a name and “costa” is a noun - they look or sound alike but fill different roles in a sentence.

#2,649
“Corea” frequency rank
#841
“costa” frequency rank
3490
confusion score

Side-by-Side Comparison

Feature Corea costa
Definition Península de Asia oriental, ubicada entre el mar Amarillo y el mar del Japón. Región de tierra seca fronteriza con el mar o, por extensión, con una masa de agua (río, lago, etc.).

Where the eye mixes Corea and costa

Muted = shared; highlighted = the visual trap. They share 3 letters in sequence.

5 ch
Corea
5 ch
costa

Visual trap between Corea and costa

These two trip readers on the page rather than in the ear: Corea is [koˈɾea] while costa is [ˈkost̪a]. 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 (name vs noun), which is usually the fastest check. Our composite confusion score for this pair is 3490, derived from the frequency rank of both members and their visual similarity.

Corea is recorded at frequency rank #2,649, classified as aname, pronounced [koˈɾea]. costa is at rank #841, tagged as anoun, pronounced [ˈkost̪a].

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 3490, this pair ranks #318,196 of 323,831 scored Spanish confusable pairs - a relatively easy-to-tell-apart pair.

Orthographic DNA of Corea vs costa

Shared letters: aco. Private to "Corea": er. Private to "costa": st.

"Corea" · 5 letters · shape CVCVV  ·  "costa" · 5 letters · shape CVCCV

Known mistypes of this pair

  • Coreaccorea · coera · corae · croea · ocrea
  • costaccosta · cosat · cossta · costta · cotsa · csota · ocsta

Frequently Asked Questions

Is swapping "Corea" for "costa" ever safe?
No - they are not even the same part of speech. "Corea" is a name and "costa" a noun, so a sentence built for one is usually ungrammatical with the other.
Frequency check: "Corea" vs "costa" - which ranks higher?
"costa" is the more common of the two: it sits at frequency rank #841 in our Spanish list, against #2,649 for "Corea". 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 "Corea" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "costa" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #318,196 of 323,831 scored Spanish confusable pairs in this corpus vintage. Corpus statistics
  • "Corea" and "costa" also get mixed up with nearby pairs, the highest-scored neighbour is "Corea vs Cova". 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 #318,196 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