Turkish game dictionary: derived from brolin59/trnlp, trnlp/data/ana_sozluk.txt.
Source: https://github.com/brolin59/trnlp
License: GNU GPL version 3 (full text: trnlp-GPL-3.0.txt).
Modifications: lowercase single-word entries only; Turkish uppercase conversion;
circumflex normalisation; verb stems converted to infinitives; length 2–15;
duplicates removed; separate proper-name and abbreviation dictionaries excluded.
Modified source: /dictionary-source.txt
Original source: /source/trnlp-ana_sozluk.txt
Reproducible transformation: scripts/prepare-dictionary.py in project source.

Expanded Turkish dictionary v2 (2026-10-11): original trnlp words are retained;
1,938 additional headwords pass scripts/expand-turkish-dictionary.py filters.
Version 1 remains frozen at /dictionary-source-tr-v1.txt (57,740 words).
Version 2 remains frozen at /dictionary-source-tr-v2.txt (59,678 words).
Version 3: /dictionary-source.txt (60,076 words).

Additional sources:
- Zemberek NLP: Ahmet A. Akin, Mehmet D. Akin and contributors.
  https://github.com/ahmetaa/zemberek-nlp
  Apache License 2.0: Apache-2.0.txt; upstream notice: zemberek-NOTICE.txt.
  Original dictionary files: /source/zemberek/ (master/non-tdk dictionaries).
- Turkish WordNet KeNet: Starlang Software and contributors.
  https://github.com/StarlangSoftware/TurkishWordNet
  KeNet's Lexicon explicitly declares GPL-3; full text: trnlp-GPL-3.0.txt.
  Selected original headwords, synset identifiers and definitions:
  /source/kenet-supplement.json, extracted from kenet.xml.
- Turkce Vikisozluk contributors: CC BY-SA 4.0.
  https://tr.wiktionary.org/ via Kaikki / Wiktextract.
  Attribution, dump date, source, license: meanings-NOTICE.txt.

Exact revisions/dump date: /source/dictionary-supplement-provenance.json.
Published evidence for each accepted addition: /source/dictionary-supplement-tr.json.
Explicit editorial exceptions: /source/dictionary-supplement-review.json.
Modifications: normalized single Turkish headwords of 2-15 board letters;
proper names, abbreviations, marked inflection/misspelling senses excluded;
verb headwords must be infinitives; at least two additional sources required,
except the explicitly reviewed defined noun KORONAVIRUS. Existing words are
not removed. Original sources remain authoritative; this is not an official
TDK or Kelimelik tournament lexicon. Source-specific licenses above apply to
their respective data; attribution is retained in the published evidence.

Expanded Turkish dictionary v3 (2026-10-11): v2 is retained unchanged;
398 additions have an official TDK GTS headword reference match and lexical
evidence from at least one of the open-licensed sources above. The same
POS/definition/proper-name/inflection filters apply; ATV is excluded after
manual review. Evidence: /source/dictionary-v3-approved.json.
TDK is used only as a headword comparison reference; its electronic dataset
and definitions are not bundled or redistributed. Summary coverage and
reference snapshot metadata: /source/tdk-coverage-audit.json. Published lexical
material comes from the separately attributed open-licensed sources above;
their respective licenses continue to apply.