sites vs STS, What's the Difference?

Which to use

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

#1,878
“sites” frequency rank: #20,790
“STS” frequency rank: 22668
confusion score

Side-by-Side Comparison

Feature	sites	STS
Definition	plural of site	Initialism of science and technology studies.

Letter map: sites vs STS

Shared letters muted; letters that set sites and STS apart highlighted. Shared run: 3.

5 ch

sites

3 ch

STS

Corpus notes: sites and STS

sites 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 2 letter(s) in length. Our composite confusion score for this pair is 22668, derived from the frequency rank of both members and their visual similarity.

sites is recorded at frequency rank #1,878, classified as anoun, pronounced /saɪts/. 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 22668, this pair ranks #414,884 of 530,003 scored English confusable pairs - a relatively easy-to-tell-apart pair.

Orthographic DNA of sites vs STS

Shared letters: st. Private to "sites": ei. Private to "STS": -.

"sites" · 5 letters · shape CVCVC · "STS" · 3 letters · shape CCC

Known mistypes of this pair

sites ← istes · siets · sitess · sitse · sittes · ssites · sties

Frequently Asked Questions

Do "sites" and "STS" mean the same thing in a sentence?

No. They differ by 2 letter(s) in length, but the dictionary glosses above give them different meanings, so swapping one for the other changes what the sentence says.

Which is more common, "sites" or "STS"?

"sites" is the more common of the two: it sits at frequency rank #1,878 in our English list, against #20,790 for "STS". That is a wide gap, so in ordinary text the rarer spelling is the one worth double-checking.

After this comparison

You've compared "sites" and "STS". Here's where to go from here.

Full dictionary entry for "sites" 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 #414,884 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
"sites" 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 #414,884 of 530,003 scored English pairs, corpus vintage 2026-09-03, not spelling advice.