secsvssudsWhich spelling fits?

Which to use

“secs” and “suds” are a confusable English pair: similar on the page, but distinct in meaning, check the gloss before you choose.

#24,894
“secs” frequency rank
#49,655
“suds” frequency rank
74549
confusion score

Side-by-Side Comparison

Feature secs suds
Definition plural of sec; seconds Lather; foam or froth formed by mixing soap and water.

Where the eye mixes secs and suds

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

4 ch
secs
4 ch
suds

Look-alike desk: secs vs suds

A purely visual mix-up. secs (/sɛks/) and suds (/sʌdz/) are said differently, so reading them aloud is the quickest way to catch the wrong one. On the page they stay close: they share most of their letters but differ in 2 positions. Our composite confusion score for this pair is 74549, derived from the frequency rank of both members and their visual similarity.

secs is recorded at frequency rank #24,894, classified as anoun, pronounced /sɛks/. suds is at rank #49,655, tagged as anoun, pronounced /sʌdz/.

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 74549, this pair ranks #36,008 of 530,003 scored English confusable pairs - among the most confusable pairs.

Orthographic DNA of secs vs suds

Shared letters: s. Private to "secs": ce. Private to "suds": du.

"secs" · 4 letters · shape CVCC  ·  "suds" · 4 letters · shape CVCC

Known mistypes of this pair

  • secsescs · sces · seccs · secss · sesc · ssecs
  • sudssdus · ssuds · sudds · sudss · susd · usds

Frequently Asked Questions

Is swapping "secs" for "suds" ever safe?
No. They are said differently (/sɛks/ versus /sʌdz/) and carry different meanings; reading the sentence aloud is usually enough to catch the wrong one.
In ordinary English text, does "secs" or "suds" show up more?
"secs" is the more common of the two: it sits at frequency rank #24,894 in our English list, against #49,655 for "suds". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

After this comparison

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

  • Full dictionary entry for "secs" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "suds" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #36,008 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
  • "secs" and "suds" also get mixed up with nearby pairs, the highest-scored neighbour is "suds vs sura". 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 #36,008 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