STK vs SZ, What's the Difference?

Which to use

“STK” and “SZ” are a confusable German pair: similar on the page, but distinct in meaning, check the gloss before you choose.

#42,155
“STK” frequency rank: #6,363
“SZ” frequency rank: 48518
confusion score

Side-by-Side Comparison

Feature	STK	SZ
Definition	Stanice Technické Kontroly	Sommerzeit

Where the eye mixes STK and SZ

Muted = shared; highlighted = the visual trap. They share 1 letter in sequence.

3 ch

STK

2 ch

Visual trap between STK and SZ

A purely visual mix-up. STK ([ɛs.tɛː.kaː]) and SZ ([ɛsˈt͡sɛt]) are said differently, so reading them aloud is the quickest way to catch the wrong one. On the page they stay close: they differ by 1 letter(s) in length. Our composite confusion score for this pair is 48518, derived from the frequency rank of both members and their visual similarity.

STK is recorded at frequency rank #42,155, classified as anabbrev, pronounced [ɛs.tɛː.kaː]. SZ is at rank #6,363, tagged as anabbrev, pronounced [ɛsˈt͡sɛt].

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 48518, this pair ranks #1,245,632 of 2,006,359 scored German confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of STK vs SZ

Shared letters: s. Private to "STK": kt. Private to "SZ": z.

"STK" · 3 letters · shape CCC · "SZ" · 2 letters · shape CC

Frequently Asked Questions

Can "STK" and "SZ" be used interchangeably?

No. They are said differently ([ɛs.tɛː.kaː] versus [ɛsˈt͡sɛt]) and carry different meanings; reading the sentence aloud is usually enough to catch the wrong one.

Which is more common, "STK" or "SZ"?

"SZ" is the more common of the two: it sits at frequency rank #6,363 in our German list, against #42,155 for "STK". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

After this comparison

Visual near-miss handled. Browse the word pages or a neighbour when the next look-alike shows up.

Full dictionary entry for "STK" with definition, IPA, and generated misspellings. Word entry
Full dictionary entry for "SZ" - compare definitions side by side with the headword page. Word entry
This pair ranks #1,245,632 of 2,006,359 scored German confusable pairs in this corpus vintage. Corpus statistics
"STK" and "SZ" also get mixed up with nearby pairs, the highest-scored neighbour is "seg vs STK". Nearby pair

Confusion rank #1,245,632 of 2,006,359 scored German pairs, corpus vintage 2026-09-03, not spelling advice.