sans vs STS, What's the Difference?

Which to use

“sans” is a preposition and “STS” is a noun - they look or sound alike but fill different roles in a sentence.

#13,416
“sans” frequency rank: #20,790
“STS” frequency rank: 34206
confusion score

Side-by-Side Comparison

Feature	sans	STS
Definition	Without; lacking, especially with regard to something expected or with precedent	Initialism of science and technology studies.

Letter map: sans vs STS

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

4 ch

sans

3 ch

STS

Part-of-speech tell for sans / STS

Our dataset has no pronunciation recorded for both members, so the reliable separator here is grammatical: sans is apreposition and STSanoun. On the page they differ by 1 letter(s) in length. Our composite confusion score for this pair is 34206, derived from the frequency rank of both members and their visual similarity.

sans is recorded at frequency rank #13,416, classified as aprep, pronounced /sænz/. 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 34206, this pair ranks #322,758 of 530,003 scored English confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of sans vs STS

Shared letters: s. Private to "sans": an. Private to "STS": t.

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

Known mistypes of this pair

sans ← asns · sanns · sanss · sasn · snas · ssans

Frequently Asked Questions

Can "sans" and "STS" be used interchangeably?

No - they are not even the same part of speech. "sans" is a preposition and "STS" a noun, so a sentence built for one is usually ungrammatical with the other.

In ordinary English text, does "sans" or "STS" show up more?

"sans" is the more common of the two: it sits at frequency rank #13,416 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.

Useful next steps

Done with this confusable. These links stay specific to "sans" and "STS".

Full dictionary entry for "sans" 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 #322,758 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
"sans" 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 #322,758 of 530,003 scored English pairs, corpus vintage 2026-09-03, not spelling advice.