Which to use
“CIA” is a noun and “circa” is an adverb - they look or sound alike but fill different roles in a sentence.
- #7,306
- “CIA” frequency rank
- #5,926
- “circa” frequency rank
- 13232
- confusion score
Side-by-Side Comparison
| Feature | CIA | circa |
|---|---|---|
| Definition | US-amerikanischer Auslandsnachrichtendienst | etwa, rund, ungefähr |
Where the eye mixes CIA and circa
Muted = shared; highlighted = the visual trap. They share 3 letters in sequence.
Why the eye confuses CIA with circa
These two trip readers on the page rather than in the ear: CIA is [siːaɪ̯ˈɛɪ̯] while circa is [ˈt͡sɪʁka]. Spoken aloud the problem disappears. In writing it persists, because they differ by 2 letter(s) in length, and the parts of speech differ too (noun vs adverb), which is usually the fastest check. Our composite confusion score for this pair is 13232, derived from the frequency rank of both members and their visual similarity.
CIA is recorded at frequency rank #7,306, classified as anoun, pronounced [siːaɪ̯ˈɛɪ̯]. circa is at rank #5,926, tagged as anadv, pronounced [ˈt͡sɪʁka].
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 13232, this pair ranks #1,959,263 of 2,006,359 scored German confusable pairs - a relatively easy-to-tell-apart pair.
Orthographic DNA of CIA vs circa
Shared letters: aci. Private to "CIA": -. Private to "circa": r.
"CIA" · 3 letters · shape CVV · "circa" · 5 letters · shape CVCCV
Known mistypes of this pair
- circa ← ccirca · cicra · cirac · circca · cirrca · crica · icrca
Frequently Asked Questions
Is swapping "CIA" for "circa" ever safe?
In ordinary German text, does "CIA" or "circa" show up more?
What to do next
Pronunciation already separates them, if the page still looks alike, the dictionary links below settle it.
- Full dictionary entry for "CIA" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "circa" - compare definitions side by side with the headword page. Word entry
- This pair ranks #1,959,263 of 2,006,359 scored German confusable pairs in this corpus vintage. Corpus statistics
- "CIA" and "circa" also get mixed up with nearby pairs, the highest-scored neighbour is "CCS vs CIA". 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 #1,959,263 of 2,006,359 scored German pairs, corpus vintage 2026-09-03, not spelling advice.