Word Guess Daily — word list sources and licences
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Answer lists ("answers" in every <lang>-<len>.json)
  Hand-curated for this game (common, family-friendly, dictionary-form words), vetted against
  the blocklists below. © FunGameHouse, released under CC BY-SA 4.0 together with the guess lists.

Valid-guess lists ("guesses" in <lang>-<len>.json, and vi-syllables.json)
  Derived from wordfreq 3.x by Robyn Speer / Elia Robyn Lake — https://github.com/rspeer/wordfreq
  Data licence: Creative Commons Attribution-ShareAlike 4.0 (https://creativecommons.org/licenses/by-sa/4.0/).
  wordfreq itself aggregates Wikipedia, OpenSubtitles, SUBTLEX, Google Books Ngrams, NewsCrawl,
  Reddit, Twitter and other corpora (see the wordfreq README for per-source credits).
  Changes: filtered to 4–7 letters, folded (accents removed per language rules), frequency cut-off
  (Zipf ≥ 1.5, max 24 000 per file), blocklisted words removed.
  These derived lists are licensed CC BY-SA 4.0.

English extra guesses
  Webster's Second International Dictionary word list (/usr/share/dict/web2, 1934) — public domain.

Blocklists (build input only, not shipped)
  List of Dirty, Naughty, Obscene, and Otherwise Bad Words — https://github.com/LDNOOBW
  (CC BY 4.0) for en, es, pt, fr, de, ru, tr; our own lists for id and vi and extra English terms.

Build: games/word-guess-daily/tools/dump_wordfreq.py + tools/build-words.mjs (see headers).