seavssurWhat's the difference?

Quick tell: sea is a verb, sur is a noun, so they fill different roles in a sentence.

Which to use

“sea” is a verb and “sur” is a noun - they look or sound alike but fill different roles in a sentence.

#116
“sea” frequency rank
#517
“sur” frequency rank
633
confusion score

Side-by-Side Comparison

Feature sea sur
Definition Primera persona del singular (yo) del presente de subjuntivo de ser. Punto cardinal del horizonte, exactamente donde se encuentra el Sol a mediodía (en el hemisferio norte), marcado a 180° con respecto al Norte en una brújula. Convencionalmente se ubica en la parte inferior de los mapas,.

Where the eye mixes sea and sur

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

3 ch
sea
3 ch
sur

Why the eye confuses sea with sur

These two trip readers on the page rather than in the ear: sea is [ˈsea] while sur is [ˈsuɾ]. 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 (verb vs noun), which is usually the fastest check. Our composite confusion score for this pair is 633, derived from the frequency rank of both members and their visual similarity.

sea is recorded at frequency rank #116, classified as averb, pronounced [ˈsea]. sur is at rank #517, tagged as anoun, pronounced [ˈsuɾ].

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 633, this pair ranks #323,171 of 323,831 scored Spanish confusable pairs - a relatively easy-to-tell-apart pair.

Orthographic DNA of sea vs sur

Shared letters: s. Private to "sea": ae. Private to "sur": ru.

"sea" · 3 letters · shape CVV  ·  "sur" · 3 letters · shape CVC

Frequently Asked Questions

Is swapping "sea" for "sur" ever safe?
No - they are not even the same part of speech. "sea" is a verb and "sur" a noun, so a sentence built for one is usually ungrammatical with the other.
Which is more common, "sea" or "sur"?
"sea" is the more common of the two: it sits at frequency rank #116 in our Spanish list, against #517 for "sur". 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 "sea" and "sur" is sorted above. Next: full entries or other pairs that share a letter shape.

  • Full dictionary entry for "sea" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "sur" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #323,171 of 323,831 scored Spanish confusable pairs in this corpus vintage. Corpus statistics
  • "sea" and "sur" also get mixed up with nearby pairs, the highest-scored neighbour is "Segur vs sur". Nearby pair

Confusion rank #323,171 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