APO vs AUX, What's the Difference?

Which to use

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

#31,930
“APO” frequency rank: #18,814
“AUX” frequency rank: 50744
confusion score

Side-by-Side Comparison

Feature	APO	AUX
Definition	außerparlamentarische Opposition	Kürzel für einen zusätzlichen Eingang zur freien Verwendung (bei Geräten wie zum Beispiel Verstärkern)

Letter map: APO vs AUX

Shared letters muted; letters that set APO and AUX apart highlighted. Shared run: 1.

3 ch

APO

3 ch

AUX

Pair insight - APO / AUX

APO and AUX are indexed as a confusable German pair. We have no recorded pronunciation or part of speech for both members, so the spelling overlap is what we can show you: they share most of their letters but differ in 2 positions. Our composite confusion score for this pair is 50744, derived from the frequency rank of both members and their visual similarity.

APO is recorded at frequency rank #31,930, classified as anabbrev, pronounced [ˈaːpo]. AUX is at rank #18,814, tagged as anabbrev, pronounced […].

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 50744, this pair ranks #1,162,120 of 2,006,359 scored German confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of APO vs AUX

Shared letters: a. Private to "APO": op. Private to "AUX": ux.

"APO" · 3 letters · shape VCV · "AUX" · 3 letters · shape VVC

Frequently Asked Questions

Is swapping "APO" for "AUX" ever safe?

No. They share most of their letters but differ in 2 positions, but the dictionary glosses above give them different meanings, so swapping one for the other changes what the sentence says.

Frequency check: "APO" vs "AUX" - which ranks higher?

"AUX" is the more common of the two: it sits at frequency rank #18,814 in our German list, against #31,930 for "APO". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

After this comparison

You've compared "APO" and "AUX". Here's where to go from here.

Full dictionary entry for "APO" with definition, IPA, and generated misspellings. Word entry
Full dictionary entry for "AUX" - compare definitions side by side with the headword page. Word entry
This pair ranks #1,162,120 of 2,006,359 scored German confusable pairs in this corpus vintage. Corpus statistics
"APO" and "AUX" also get mixed up with nearby pairs, the highest-scored neighbour is "APO vs AUD". Nearby pair

Confusion rank #1,162,120 of 2,006,359 scored German pairs, corpus vintage 2026-09-03, not spelling advice.