The Word Index

Explore how English spellings are structured, sounded, sourced, and related.

Find words

Combine spelling, letters, source, sound, and ranking constraints.

Inspect a word

Open source-backed spelling, sense, pronunciation, and relationship evidence.

Match a pattern

Place known letters and leave unknown positions blank.

Explore anagrams

Compare exact letter-multiset matches across source scopes.

Use a letter bank

Find spellings that consume no letter more often than supplied.

Explore sound & rhyme

Compare retained CMUdict pronunciation variants and ending sounds.
Try a Finder:
Pattern ????S 7 letters ending ING Anagrams of LISTEN Rhymes with TIME
Lists:
Palindromes Isograms All 5 Vowels Long Words

From the Data Desk

Reproducible analyses from our versioned lexicon, with explicit methods and limitations, plus focused explanations of how the product interprets lexical evidence.

Letter Frequency in the Indexed Lexicon

Counts by position and word length, with the dataset limits made clear.

Read the study →

Pronunciation Coverage

Measured CMUdict coverage and variant limits for this exact release.

Read the study →

Searching by Letters and Patterns

Choose the right constraint and preserve repeated-letter meaning.

Read the guide →

All data studies → All guides →