Content and licences

Updated 6 October 2026. German Hub includes 5,000 distinct vocabulary entries, 5,001 meaning/example rows and 24 bilingual grammar lessons. Four retained greetings and expressions are included in the vocabulary count. Capitalization distinguishes entries such as Morgen (morning) and morgen (tomorrow); the two meanings of Bank share one entry.

English meanings

Each word has an English meaning immediately beneath its German headword. German examples have English translations. The original entries also include German definitions; imported entries use direct English meanings. German grammar explanations and examples retain their English translations.

Vocabulary sources

The initial 153 meaning rows and 49 supplementary core entries were authored for German Hub. The expansion adds 4,799 entries adapted from GENERAL NEURO Language-Learning-decks, German corpus, source revision cc57ec2dd77d. Copyright © 2025 GENERAL NEURO. The repository is published under the MIT licence.

The corpus uses wordfreq frequency data by Robyn Speer and Luminoso Technologies, Inc., under CC BY-SA 4.0. See the upstream attribution notice and wordfreq v3.0 citation. The repository states that its learning content was generated and cleaned with Gemini. The supplied CEFR labels are approximate; German Hub groups A1–A2 as Beginner, B1–B2 as Intermediate and C1–C2 as Advanced. This is not an official CEFR classification or a claim to contain the 5,000 most frequent German words.

Noun articles and plurals

New noun entries were cross-checked against gambolputty/german-nouns, a compilation from German Wiktionary, revision 8386d23dcf18, under CC BY-SA 4.0. Attribution: German Wiktionary contributors and the german-nouns contributors. A noun was imported only when its gender and nominative singular matched the reference. Available nominative plurals were added. A missing plural display does not certify that a word has no plural.

Changes and reuse

Changes include selecting and deduplicating headwords, excluding incomplete examples and unsupported noun forms, normalizing part-of-speech labels, grouping study levels, adding articles and available plurals, adding stable IDs and converting the data to CSV. Existing IDs are preserved; the former second Bank entry is merged into the first while preserving its meaning. A small set of common function words was authored separately to fill gaps in the corpus.

The adapted vocabulary compilation in data/words.csv is distributed under Creative Commons Attribution-ShareAlike 4.0 International. Retain these credits and notices and distribute adaptations of this vocabulary under the same licence. This notice applies to the vocabulary compilation, not to the Arynox branding or application code. The original upstream MIT notice is also included.

Quality and learning scope

Automated checks cover all entries for English meanings, German examples, translated examples, unique IDs and data consistency. Noun forms have a second reference, and sample entries have been inspected. The complete 5,000-entry collection has not had a line-by-line review by a German teacher; some generated translations or sense choices may need correction. Neither the vocabulary nor the 24 lessons constitutes a complete examination syllabus.

General grammar patterns in the original lessons were checked against the Goethe-Institut grammar reference. No affiliation or endorsement is implied. No Routledge textbook dataset or English WordNet entries are included.

Pronunciation and privacy

Pronunciation uses a German text-to-speech voice installed on the visitor’s device. No recorded audio is bundled. Progress is stored only in this browser, with a separate German Hub key. There are no accounts, payments or teacher dashboards.