Which to use
“sec” is an adjective and “so” is an adverb - they look or sound alike but fill different roles in a sentence.
- #17,813
- “sec” frequency rank
- #3,151
- “so” frequency rank
- 20964
- confusion score
Side-by-Side Comparison
| Feature | sec | so |
|---|---|---|
| Definition | Seco | Intensifica las cualidades, normalmente negativas, del sustantivo o adjetivo al que modifica. |
Where the eye mixes sec and so
Muted = shared; highlighted = the visual trap. They share 1 letter in sequence.
Visual trap between sec and so
These two trip readers on the page rather than in the ear: sec is [sɛk] while so is [so]. Spoken aloud the problem disappears. In writing it persists, because they differ by 1 letter(s) in length, and the parts of speech differ too (adjective vs adverb), which is usually the fastest check. Our composite confusion score for this pair is 20964, derived from the frequency rank of both members and their visual similarity.
sec is recorded at frequency rank #17,813, classified as anadj, pronounced [sɛk]. so is at rank #3,151, tagged as anadv, pronounced [so].
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 20964, this pair ranks #256,988 of 323,831 scored Spanish confusable pairs - a relatively easy-to-tell-apart pair.
Orthographic DNA of sec vs so
Shared letters: s. Private to "sec": ce. Private to "so": o.
"sec" · 3 letters · shape CVC · "so" · 2 letters · shape CV
Frequently Asked Questions
Is swapping "sec" for "so" ever safe?
In ordinary Spanish text, does "sec" or "so" show up more?
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 "sec" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "so" - compare definitions side by side with the headword page. Word entry
- This pair ranks #256,988 of 323,831 scored Spanish confusable pairs in this corpus vintage. Corpus statistics
- "sec" and "so" also get mixed up with nearby pairs, the highest-scored neighbour is "sec vs stem". Nearby pair
Confusion rank #256,988 of 323,831 scored Spanish pairs, corpus vintage 2026-09-03, not spelling advice.