seanvssecWhich spelling fits?

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

Which to use

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

#4,267
“sean” frequency rank
#4,268
“sec” frequency rank
8535
confusion score

Side-by-Side Comparison

Feature sean sec
Definition Dated form of seine. Second, ¹⁄₆₀ of a minute.

Letter map: sean vs sec

Shared letters muted; letters that set sean and sec apart highlighted. Shared run: 2.

4 ch
sean
3 ch
sec

Part-of-speech tell for sean / sec

Our dataset has no pronunciation recorded for both members, so the reliable separator here is grammatical: sean is averb and secanoun. On the page they differ by 1 letter(s) in length. Our composite confusion score for this pair is 8535, derived from the frequency rank of both members and their visual similarity.

sean is recorded at frequency rank #4,267, classified as averb. sec is at rank #4,268, tagged as anoun, pronounced /sɛk/.

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 8535, this pair ranks #502,012 of 530,003 scored English confusable pairs - a relatively easy-to-tell-apart pair.

Orthographic DNA of sean vs sec

Shared letters: es. Private to "sean": an. Private to "sec": c.

"sean" · 4 letters · shape CVVC  ·  "sec" · 3 letters · shape CVC

Known mistypes of this pair

  • seanesan · saen · seann · sena · ssean

Frequently Asked Questions

Can "sean" and "sec" be used interchangeably?
No - they are not even the same part of speech. "sean" is a verb and "sec" a noun, so a sentence built for one is usually ungrammatical with the other.
Frequency check: "sean" vs "sec" - which ranks higher?
"sean" is the more common of the two: it sits at frequency rank #4,267 in our English list, against #4,268 for "sec". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

Useful next steps

Done with this confusable. These links stay specific to "sean" and "sec".

  • Full dictionary entry for "sean" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "sec" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #502,012 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
  • "sean" and "sec" also get mixed up with nearby pairs, the highest-scored neighbour is "sec vs Sif". 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 #502,012 of 530,003 scored English pairs, corpus vintage 2026-09-03, not spelling advice.

Source: Wiktionary (via kaikki.org) Structured Wiktionary extract

Source: FrequencyWords open word-frequency list