Vocabulary sources & licenses
Daily Glyph’s expanded puzzles use original clues and arrangements reviewed against lexical sources. Historical material is never approved merely because it is old or freely accessible.
Public-domain dictionary · Webster 1806
New dictionary practice uses 50 reviewed entries from Noah Webster’s original 1806 A Compendious Dictionary of the English Language. Each transcription was checked against the scanned entry; hints are newly written. The exact edition is marked public domain, and Webster died in 1843. Later editions and modern annotations are excluded. Ordinary dictionary answers in this new pool require approved public-domain provenance; occasional historical names and folklore retain their separate source credits.
Original edition and scan · Edition-specific rights record
Princeton WordNet 3.0
WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved. Lexical senses, relationships and definitions support vocabulary review. Daily Glyph extracts and normalizes eligible spellings, adds its own original clues, ratings and themes, and builds new five-answer arrangements. No endorsement is implied.
Source · Complete license and disclaimer
Open English WordNet 2025
Copyright 2019–present, the Open English WordNet Team; derived from Princeton WordNet. Imported under CC BY 4.0 plus the inherited WordNet notice. Daily Glyph extracts and normalizes vocabulary, preserves senses and source links, and adds separate editorial reviews. Newly imported meanings remain pending until reviewed.
2025 source release · Attribution and CC license · Inherited WordNet 3.1 notice · CC BY 4.0
Project Gutenberg
Webster’s Unabridged Dictionary, ebook 29765, was imported from the official download cache with its catalog RDF. The catalog states public domain in the USA. That is not worldwide clearance: this source is excluded from automatic public puzzle exports pending edition-specific and territorial review. Dictionary OCR and definitions are not automatically treated as accurate modern clues.
Work and rights information · Retained Gutenberg terms
Library of Congress · Chronicling America
The current loc.gov JSON API is used for bounded discovery of pre-1931 newspaper material. Publication dates, item/page URLs and rights evidence must be reviewed individually. OCR yields pending word occurrences, never approved crossword clues or copied arrangements. No newspaper-derived vocabulary is currently approved in the public expansion.
Collection · Rights and access
Wiktionary · pending review
A Simple English Wiktionary/Wiktextract snapshot is imported for private review under its CC BY-SA/GFDL terms. It is not public domain. Entry attribution, history links, the snapshot checksum, and share-alike requirements are retained. No Wiktionary-derived puzzle clue is approved in this release.
Structured source downloads · Reuse and attribution terms
Review and finite supply
The library now contains 10,000 approved arrangements: 2,198 scheduled daily puzzles and 7,802 separate practice puzzles. There are 213 reviewed meanings, including historical surnames, mythology, folklore and ordinary dictionary vocabulary. New daily puzzles have no overall theme; shared symbols connect the answers. Thirteen earlier candidates remain flagged; uncertain content is excluded from public exports. Future daily answers are kept in the server reserve and excluded from practice data. Only a released daily entry and a small practice sample are sent to the browser. There are 500 WordNet-backed categories for editorial discovery, including seven currently usable reviewed themes. New imports do not change existing daily puzzles, practice seeds, archives, scores or saved statistics.
Puzzle Library is the separate, authenticated operator console used for source management. Its database, review notes, credentials and unapproved imports are not served by this public game.