sonsvsSTSTell them apart

Which to use

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

#3,028
“sons” frequency rank
#20,790
“STS” frequency rank
23818
confusion score

Side-by-Side Comparison

Feature sons STS
Definition plural of son Initialism of science and technology studies.

Letter map: sons vs STS

Shared letters muted; letters that set sons and STS apart highlighted. Shared run: 2.

4 ch
sons
3 ch
STS

Corpus notes: sons and STS

sons and STS are indexed as a confusable English pair. We have no recorded pronunciation or part of speech for both members, so the spelling overlap is what we can show you: they differ by 1 letter(s) in length. Our composite confusion score for this pair is 23818, derived from the frequency rank of both members and their visual similarity.

sons is recorded at frequency rank #3,028, classified as anoun, pronounced /sʌnz/. STS is at rank #20,790, tagged as anoun.

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 23818, this pair ranks #406,549 of 530,003 scored English confusable pairs - a relatively easy-to-tell-apart pair.

Orthographic DNA of sons vs STS

Shared letters: s. Private to "sons": no. Private to "STS": t.

"sons" · 4 letters · shape CVCC  ·  "STS" · 3 letters · shape CCC

Known mistypes of this pair

  • sonsosns · snos · sonns · sonss · sosn · ssons

Frequently Asked Questions

Do "sons" and "STS" mean the same thing in a sentence?
No. They differ by 1 letter(s) in length, but the dictionary glosses above give them different meanings, so swapping one for the other changes what the sentence says.
Frequency check: "sons" vs "STS" - which ranks higher?
"sons" is the more common of the two: it sits at frequency rank #3,028 in our English list, against #20,790 for "STS". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

After this comparison

Pair "sons" vs "STS" is on the table, pick a follow-up below.

  • Full dictionary entry for "sons" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "STS" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #406,549 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
  • "sons" and "STS" also get mixed up with nearby pairs, the highest-scored neighbour is "STS vs suds". 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 #406,549 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