sul vs sun, What's the Difference?

Which to use

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

#20,840
“sul” frequency rank: #8,323
“sun” frequency rank: 29163
confusion score

Side-by-Side Comparison

Feature	sul	sun
Definition	Sur.	Sol₂.

Where the eye mixes sul and sun

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

3 ch

sul

3 ch

sun

Visual trap between sul and sun

A purely visual mix-up. sul (/ˈsul/) and sun (/sʌn/) are said differently, so reading them aloud is the quickest way to catch the wrong one. On the page they stay close: they differ by a single letter - l in “sul” becomes n in “sun”. Our composite confusion score for this pair is 29163, derived from the frequency rank of both members and their visual similarity.

sul is recorded at frequency rank #20,840, classified as anoun, pronounced /ˈsul/. sun is at rank #8,323, tagged as anoun, pronounced /sʌn/.

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 29163, this pair ranks #218,379 of 323,831 scored Spanish confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of sul vs sun

Shared letters: su. Private to "sul": l. Private to "sun": n.

"sul" · 3 letters · shape CVC · "sun" · 3 letters · shape CVC

Frequently Asked Questions

Is swapping "sul" for "sun" ever safe?

No. They are said differently (/ˈsul/ versus /sʌn/) and carry different meanings; reading the sentence aloud is usually enough to catch the wrong one.

Frequency check: "sul" vs "sun" - which ranks higher?

"sun" is the more common of the two: it sits at frequency rank #8,323 in our Spanish list, against #20,840 for "sul". 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 "sul" and "sun" is sorted above. Next: full entries or other pairs that share a letter shape.

Full dictionary entry for "sul" with definition, IPA, and generated misspellings. Word entry
Full dictionary entry for "sun" - compare definitions side by side with the headword page. Word entry
This pair ranks #218,379 of 323,831 scored Spanish confusable pairs in this corpus vintage. Corpus statistics
"sul" and "sun" also get mixed up with nearby pairs, the highest-scored neighbour is "sila vs sul". Nearby pair

Confusion rank #218,379 of 323,831 scored Spanish pairs, corpus vintage 2026-09-03, not spelling advice.