Letter Tiles word lists (rules version 2) — 8 November 2026

Each Letter Tiles room uses one word list. The files under /words/letter-tiles/
are compact word graphs (DAWG) built from the sources below by
scripts/words/build-letter-tiles.mjs in the website source
(/licenses/website-source.tar.gz). The same script derives each language's
tile counts and letter values from letter frequency in its list. No
definitions are included. The computer player additionally skips a short
list of vulgar words; players may still form any listed word.

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English — ENABLE (public domain)
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ENABLE, compiled by Alan Beale and M. Cooper, released into the public
domain, with the QI/QIS and ZA/ZAS additions. Full credits and the frozen
source: /licenses/letter-tiles-wordlist.txt
168,555 words.

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Polish — Słownik SJP.PL, wersja do gier słownych (CC BY 4.0)
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Source: Słownik SJP.PL – wersja do gier słownych, https://sjp.pl/sl/growy/
Release used: sjp-20261101.zip
  zip SHA-256:       cc7c98e4c02f4c8aa1d20cc5f6625e66f02f968a02d9c32e52e029173b41f23a
  slowa.txt SHA-256: 153e334bf17e4841a3c6b270460c71b4a440b6c808b9062a3b60c943fb2b5a37
License: the README in the archive offers GPL 2 or Creative Commons
Attribution 4.0 International, at the user's choice. Leaf Arcade uses it
under CC BY 4.0: https://creativecommons.org/licenses/by/4.0/
Attribution: © SJP.PL contributors, https://sjp.pl
Changes: lowercased; kept words of 2–15 letters written only with the Polish
tile alphabet (a ą b c ć d e ę f g h i j k l ł m n ń o ó p r s ś t u w y z ź ż),
which drops forms containing q, v or x; deduplicated and encoded as a word
graph. 3,245,253 words.

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French — Grammalecte lexicon (MPL 2.0)
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Source: Lexique Grammalecte v7.7 (forms generated from the Grammalecte
Hunspell French dictionary, "toutes variantes"), Olivier R. and
contributors, https://grammalecte.net/
  lexique-grammalecte-fr-v7.7.zip SHA-256: bdccf2065e252010253171000a38de84581407896b6bc60aca7d4d69dab7e4d2
  lexique-grammalecte-fr-v7.7.txt SHA-256: dc1fa3740e6353bccdcb435ea8f1c8a65287726026abd53dd232d5d494548eff
License: Mozilla Public License 2.0, as stated in README_lexique.txt and
README_dict_fr.txt in the downloads. Text: /licenses/MPL-2.0.txt
Source Code Form: the files above at https://grammalecte.net/ (section
"Dictionnaires"); the derived word graph is reproducible with the script.
Changes: dropped proper nouns, first names, surnames, numbers, punctuation
and prefixes (tags npr, prn, patr, nb, ponc, pfx), and any form with a
capital, hyphen, apostrophe, space or digit; replaced œ with oe and æ with
ae; removed accents (é → e); kept 2–15 letters a–z. 408,070 words.

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Spanish — RLA-ES, Diccionario de español (MPL 1.1 or later, by choice)
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Source: RLA-ES v2.9, Santiago Bosio and contributors,
https://github.com/sbosio/rla-es (release asset es.oxt)
  es.oxt SHA-256: b08a1a0e3e044697f63a67184f591f7e2c37bbb53bbfbb4780bcbd84929d6e8c
  es.aff SHA-256: 674c5a4b4d39fd3b4452f045a4e6e0649db4a2ce23f5903df8c311e21f1a757c
  es.dic SHA-256: 0a788c01b1447915c7721e96a6e2183700e9b5f9ee8974320295188ed24822e3
License: LICENSE.md in the package offers GNU GPL 3 or later, GNU LGPL 3 or
later, or MPL 1.1 or later, at the user's choice. Leaf Arcade uses the MPL.
Text: /licenses/MPL-1.1.txt (and /licenses/MPL-2.0.txt as a later version).
Source Code Form: the release above; the word graph is reproducible with
the script.
Changes: expanded every dictionary entry with its own Hunspell affix rules
(including two-level suffixes and prefix cross products); dropped entries
starting with a capital (proper nouns, abbreviations); removed accents
(á é í ó ú ü), keeping ñ as its own tile; kept 2–15 letters. There are no
CH, LL or RR tiles. 606,776 words.

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German — not shipped
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The Free German Dictionary (sourceforge.net/projects/germandict) is
labelled public domain only in SourceForge's project metadata. Its archive
and readme contain no license statement, and its documented sources include
another editor's word list and a Wikipedia text corpus. Without a license
file, no German list is distributed.