aci

[ˈat͡si]

/[ˈat͡si]/ noun

By · According to Wiktionary data (CC BY-SA) ·

The verdict

“aci” is uncommon German (frequency #98,046 among 113,935 “A” headwords), classed as a noun. The kind of spelling people second-guess.

#98,046
frequency rank, German
113,935
“A” headwords

According to Wiktionary data (CC BY-SA, analyzed May 6, 2026) - Akkusativ Singular des Substantivs acs

Key facts for aci
PropertyValue
Headwordaci
LanguageGerman
Part of speechNoun
IPA[ˈat͡si]
Letters3
Frequency rank#98,046
Misspellings tracked0
Confusable pairs0
SourceWiktionary (kaikki.org)

Where “aci” sits in German frequency

Every-word frequency runs from the handful of words we use constantly (left) to the long tail used once in a blue moon (right). aci lands here:

#1#100#1K#10K#100K
← used constantlyrarely used →

Scale is logarithmic (each tick is 10× rarer). Source: FrequencyWords open word-frequency list.

Rare enough to double-check

aci is uncommon German at frequency #98,046 among 113,935 “A” headwords, classed as anoun, transcribed [ˈat͡si]. Rarity is why readers land here mid-draft. 2 senses are on record.

aci has no tracked misspelling variants, a sign its spelling follows regular German conventions. No confusable counterpart is on file for this word, a sign it's visually distinctive enough not to be mixed up with another word.

No explicit etymology string is stored for this entry, so its spelling is best explained by sound-to-letter mapping rather than etymology. The correct German form is aci, spelled A-C-I.

Definition

  1. 1
    Akkusativ Singular des Substantivs acs
  2. 2
    Instrumental Singular des Substantivs acs

Definitions, pronunciation, and etymology for this entry are drawn from Wiktionary via the kaikki.org structured extract (CC BY-SA); frequency ordering uses the FrequencyWords open word-frequency list (2018 German corpus, MIT). See the methodology for how each field is sourced and updated.

Frequently Asked Questions

How do you spell "aci"?
"aci" is spelled A-C-I. The IPA pronunciation is [ˈat͡si].
What does "aci" mean?
As a noun, "aci" means: Akkusativ Singular des Substantivs acs
How do you pronounce "aci"?
The IPA (International Phonetic Alphabet) transcription for "aci" is [ˈat͡si]. Click the speaker icon on the pronunciation badge above to hear it spoken aloud where audio is available.
What language does "aci" come from?
"aci" is a German word. You can look up definitions, pronunciations, and spelling data for this and other words across English, Spanish, Portuguese, French, and German on PlainSpell.
Is PlainSpell free to use?
Yes, PlainSpell is a completely free word reference. You can look up definitions, pronunciations, confusable pairs, homophones, and spelling corrections across 5 languages without any sign-up or subscription.

Using “aci”

The practical upshot for anyone who landed here from a spell-check.

  • The one correct German spelling is A-C-I - every other letter order is a misspelling in standard orthography.
  • Say it as [ˈat͡si] (IPA); tap the speaker on the pronunciation badge to hear it where audio exists.
  • Browse more German words and confusable pairs in the same reference. German words

Other uncommon German words near this rank

Data Source

Wiktionary (via kaikki.org), licensed under CC BY-SA & GFDL. Word ordering uses an open word-frequency list; misspelling variants are generated by edit-distance from the correct headword.

Source: Wiktionary (via kaikki.org) Structured Wiktionary extract

Source: FrequencyWords open word-frequency list