stadiavsStasiTell them apart

Quick tell: stadia is a noun, Stasi is a name, so they fill different roles in a sentence.

Which to use

“stadia” is a noun and “Stasi” is a name - they look or sound alike but fill different roles in a sentence.

#40,903
“stadia” frequency rank
#37,706
“Stasi” frequency rank
78609
confusion score

Side-by-Side Comparison

Feature stadia Stasi
Definition A level staff or graduated rod used by surveyors to measure differences in level, or to measure horizontal distances by sighting the stadia hairs (graduations) through a telescope. The Ministry for State Security, secret police and intelligence organization of the German Democratic Republic (East Germany).

Letter map: stadia vs Stasi

Shared letters muted; letters that set stadia and Stasi apart highlighted. Shared run: 4. stadia runs 6 letters (CCVCVV) against Stasi's 5 (CCVCV) - the length gap alone is often enough to separate them once you know to check it.

6 ch
stadia
5 ch
Stasi

Part-of-speech tell for stadia / Stasi

Our dataset has no pronunciation recorded for both members, so the reliable separator here is grammatical: stadia is anoun and Stasianame. On the page they differ by 1 letter(s) in length. Our composite confusion score for this pair is 78609, derived from the frequency rank of both members and their visual similarity.

stadia is recorded at frequency rank #40,903, classified as anoun. Stasi is at rank #37,706, tagged as aname, pronounced /ˈstɑːzi/.

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 78609, this pair ranks #24,176 of 530,003 scored English confusable pairs - among the most confusable pairs.

Orthographic DNA of stadia vs Stasi

Shared letters: aist. Private to "stadia": d. Private to "Stasi": -.

"stadia" · 6 letters · shape CCVCVV  ·  "Stasi" · 5 letters · shape CCVCV

Known mistypes of this pair

  • stadia ← satdia · sstadia · stadai · staddia · staida · stdaia · sttadia · tsadia
  • Stasi ← satsi · sstasi · stais · stsai · sttasi · tsasi

Frequently Asked Questions

Is swapping "stadia" for "Stasi" ever safe?
No - they are not even the same part of speech. "stadia" is a noun and "Stasi" a name, so a sentence built for one is usually ungrammatical with the other.
Frequency check: "stadia" vs "Stasi" - which ranks higher?
"Stasi" is the more common of the two: it sits at frequency rank #37,706 in our English list, against #40,903 for "stadia". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

What to do next

Done with this confusable. These links stay specific to "stadia" and "Stasi".

  • Full dictionary entry for "stadia" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "Stasi" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #24,176 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
  • "stadia" and "Stasi" also get mixed up with nearby pairs, the highest-scored neighbour is "stadia vs staid". 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 #24,176 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