secvssegaTell them apart

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

Which to use

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

#19,268
“sec” frequency rank
#31,553
“sega” frequency rank
50821
confusion score

Side-by-Side Comparison

Feature sec sega
Definition seco serra (instrumento usado para serrar, cortar)

Where the eye mixes sec and sega

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

3 ch
sec
4 ch
sega

Look-alike desk: sec vs sega

These two trip readers on the page rather than in the ear: sec is \sɛk\ while sega is /ˈsɛ.ɡa/. 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 noun), which is usually the fastest check. Our composite confusion score for this pair is 50821, derived from the frequency rank of both members and their visual similarity.

sec is recorded at frequency rank #19,268, classified as anadj, pronounced \sɛk\. sega is at rank #31,553, tagged as anoun, pronounced /ˈsɛ.ɡa/.

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 50821, this pair ranks #14,136 of 75,631 scored Portuguese confusable pairs - among the most confusable pairs.

Orthographic DNA of sec vs sega

Shared letters: es. Private to "sec": c. Private to "sega": ag.

"sec" · 3 letters · shape CVC  ·  "sega" · 4 letters · shape CVCV

Known mistypes of this pair

  • segaesga · seag · segga · sgea · ssega

Frequently Asked Questions

Can "sec" and "sega" be used interchangeably?
No - they are not even the same part of speech. "sec" is an adjective and "sega" a noun, so a sentence built for one is usually ungrammatical with the other.
In ordinary Portuguese text, does "sec" or "sega" show up more?
"sec" is the more common of the two: it sits at frequency rank #19,268 in our Portuguese list, against #31,553 for "sega". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

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 "sega" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #14,136 of 75,631 scored Portuguese confusable pairs in this corpus vintage. Corpus statistics
  • "sec" and "sega" also get mixed up with nearby pairs, the highest-scored neighbour is "sega vs senda". 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 #14,136 of 75,631 scored Portuguese pairs, corpus vintage 2026-09-03, not spelling advice.

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

Source: FrequencyWords open word-frequency list