About The Word Index
The Word Index is a transparent lexical exploration product. It helps you inspect how spellings are structured, pronounced, sourced, and related without treating one list as a universal ruling on English.
What We Do
Start from one spelling or a set of constraints, then move into the evidence: source membership, frequency observations, pronunciation coverage, structural relationships, reproducible studies, and downloads where rights permit.
Our tools include:
- Finder – Combine length, position, letters, counts, sources, sound, and ordering in one query
- Word Explorer – Inspect available senses, forms, pronunciations, relationships, and provenance
- Pattern Finder – Find source-bounded spellings matching known and unknown positions
- Anagram Solver – Find compiled-lexicon matches formed by rearranging a set of letters
- Sound and Rhyme Explorer – Compare retained pronunciation variants and ending sounds
Portfolio Boundaries
The Word Index does not duplicate game-specific products. Five-letter deduction, accepted guesses, answer history, and opener analysis belong at FiveLetterWords. Clue-aware solving, crossword answers, construction, and crossword-specific vocabulary belong at Solve The Crossword. Links between the products appear only where they complete a real user task.
How It Works
Results use a documented ranking heuristic. It considers:
- Observed frequency where available – using the pinned frequency artifact
- Source and constraint fit – including exact pattern, letter, and list membership signals
Tiers and ordering describe this build's heuristic, not a universal judgement about English usage, game validity, or suitability for a particular puzzle. Some tools also suggest a bounded next filter based on the current result set.
Who Makes This
The Word Index is built and maintained by Matt Iles, a software developer and lifelong word-game player. Matt maintains the search engine and the review systems that record authorship, machine-generated analyses, contributors, and named human decisions for each piece. Individual guides and studies disclose their own author and review state rather than inheriting a claim from this biography. You can reach him through the contact page.
This is an independent product, not a programmatic article network. Public availability does not confer search eligibility: only pages with an explicit search approval enter the sitemap. How we build, review, and approve content is documented on our methodology page.
Our Data
Our compiled lexicon combines named, checksum-pinned artifacts and a versioned ranking heuristic. The configured sources do not all have approved reuse terms, so data-dependent pages remain excluded from search while that review is pending. See our Data Sources page for versions, checksums, licence evidence, and limitations, and our Methodology page for the build process.
Free to Use
The Word Index is free to use. Advertising may support the service when it is enabled; the Privacy Policy reports the current runtime state. The core lookup tools remain available without an account.
Privacy
We do not require an account. Searches are processed on our server, while application logs deliberately omit search terms, raw user-controlled paths, IP addresses, and user agents. Hosting and network providers still process connection data to deliver the site. Read our full Privacy Policy for details.