Word Puzzle Kit

Sources & Word Data

Last updated: 2026-07-25

Several tools on this site match your input against a list of English words. This page documents exactly where that word data comes from, how it is prepared, and how it is licensed.

The dataset

The bundled word list is an original, hand-curated compilation of common English words assembled specifically for this project. It is intentionally compact and family-friendly rather than exhaustive, and is split by purpose into several files (common words, five-letter words, an easy/kid-friendly subset, an advanced subset, and part-of-speech lists for nouns, verbs and adjectives), plus a few themed category lists.

Source

The words were selected by hand from everyday general-purpose English vocabulary. No proprietary or licence-restricted dictionary was copied to build it. The compilation and its build script are part of this project's source code.

Licence

This curated word list is released to the public domain under CC0 1.0. You are free to reuse it without restriction. Note that individual English words are not themselves copyrightable; the CC0 dedication covers the particular selection and arrangement.

If you need a much larger dictionary, you can replace the bundled files with a licence-clear list such as SCOWL or an ENABLE/YAWL-derived list. The tools make no assumption about list size.

How the data is cleaned

  • Every entry is lowercased and stripped of anything that is not a letter a–z.
  • Entries shorter than two letters are removed.
  • Duplicates are removed and each list is sorted.
  • Any word on the exclusion list (below) is removed from every list.

Filtering unsafe words

Because these tools are used in classrooms and by families, the default output is filtered. A maintained exclusion list removes serious profanity, slurs, explicit sexual terms, and other words that would be inappropriate on a worksheet. This filtering applies to every generated or suggested result.

Words that you type in yourself are not aggressively censored — the tools will process your own input — but generated educational output (random words, hangman words, and so on) is drawn only from the filtered lists. If you paste your own list into a worksheet generator, please review it for age-appropriateness before printing.

Last updated

The word data was last reviewed on 2026-07-25.