AUX vs ii, What's the Difference?

Which to use

“AUX” is an abbrev and “ii” is an unknown - they look or sound alike but fill different roles in a sentence.

#18,814
“AUX” frequency rank: #520
“ii” frequency rank: 19334
confusion score

Side-by-Side Comparison

Feature	AUX	ii
Definition	Kürzel für einen zusätzlichen Eingang zur freien Verwendung (bei Geräten wie zum Beispiel Verstärkern)	Nominativ Plural Maskulinum des Pronomens is

Letter map: AUX vs ii

Shared letters muted; letters that set AUX and ii apart highlighted. No shared letter run.

3 ch

AUX

2 ch

Part-of-speech tell for AUX / ii

Our dataset has no pronunciation recorded for both members, so the reliable separator here is grammatical: AUX is anabbrev and iianunknown. On the page they differ by 1 letter(s) in length. Our composite confusion score for this pair is 19334, derived from the frequency rank of both members and their visual similarity.

AUX is recorded at frequency rank #18,814, classified as anabbrev, pronounced […]. ii is at rank #520, tagged as anunknown, 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 19334, this pair ranks #1,909,456 of 2,006,359 scored German confusable pairs - a relatively easy-to-tell-apart pair.

Orthographic DNA of AUX vs ii

Shared letters: none. Private to "AUX": aux. Private to "ii": i.

"AUX" · 3 letters · shape VVC · "ii" · 2 letters · shape VV

Frequently Asked Questions

Do "AUX" and "ii" mean the same thing in a sentence?

No - they are not even the same part of speech. "AUX" is an abbrev and "ii" an unknown, so a sentence built for one is usually ungrammatical with the other.

In ordinary German text, does "AUX" or "ii" show up more?

"ii" is the more common of the two: it sits at frequency rank #520 in our German list, against #18,814 for "AUX". That is a wide gap, so in ordinary text the rarer spelling is the one worth double-checking.

Useful next steps

Pair "AUX" vs "ii" is on the table, pick a follow-up below.

Full dictionary entry for "AUX" with definition, IPA, and generated misspellings. Word entry
Full dictionary entry for "ii" - compare definitions side by side with the headword page. Word entry
This pair ranks #1,909,456 of 2,006,359 scored German confusable pairs in this corpus vintage. Corpus statistics
"AUX" and "ii" also get mixed up with nearby pairs, the highest-scored neighbour is "AUX vs puzzles". Nearby pair

Confusion rank #1,909,456 of 2,006,359 scored German pairs, corpus vintage 2026-09-03, not spelling advice.