secvsSUVWhich spelling fits?

Quick tell: sec is a adjective, SUV is a noun, so they fill different roles in a sentence.

Which to use

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

#17,813
“sec” frequency rank
#40,009
“SUV” frequency rank
57822
confusion score

Side-by-Side Comparison

Feature sec SUV
Definition Seco Vehículo práctico dedicado para la diversión o el ocio, muchas veces con una buena capacidad en el maletero para portar el equipamiento para la práctica de algún deporte.

Where the eye mixes sec and SUV

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

3 ch
sec
3 ch
SUV

Look-alike desk: sec vs SUV

These two trip readers on the page rather than in the ear: sec is [sɛk] while SUV is [ˈsuβ̞]. 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 (adjective vs noun), which is usually the fastest check. Our composite confusion score for this pair is 57822, 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]. SUV is at rank #40,009, tagged as anoun, pronounced [ˈsuβ̞].

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 57822, this pair ranks #68,932 of 323,831 scored Spanish confusable pairs - among the most confusable pairs.

Orthographic DNA of sec vs SUV

Shared letters: s. Private to "sec": ce. Private to "SUV": uv.

"sec" · 3 letters · shape CVC  ·  "SUV" · 3 letters · shape CVC

Frequently Asked Questions

Can "sec" and "SUV" be used interchangeably?
No - they are not even the same part of speech. "sec" is an adjective and "SUV" a noun, so a sentence built for one is usually ungrammatical with the other.
In ordinary Spanish text, does "sec" or "SUV" show up more?
"sec" is the more common of the two: it sits at frequency rank #17,813 in our Spanish list, against #40,009 for "SUV". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

Useful next steps

Pronunciation already separates them, if the page still looks alike, the dictionary links below settle it.

  • Full dictionary entry for "sec" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "SUV" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #68,932 of 323,831 scored Spanish confusable pairs in this corpus vintage. Corpus statistics
  • "sec" and "SUV" also get mixed up with nearby pairs, the highest-scored neighbour is "sous vs SUV". Nearby pair

Confusion rank #68,932 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