List of American English words that sound the same (or very nearly the same) but are spelled differently.

Spelling glossary indexed by its abstract grouping pronunciation (=Asifsound). AsifSound consists of 12 sound symbols. This is made from CMU Pronouncing Dictionary.

Relation of word sounds to meanings.

Dictionary of words that are phonetically identical but which have different meanings. Now includes over 5000 homonyms and homophones, with meanings and cross-references.

A machine-readable pronunciation dictionary for North American English that contains over 100,000 words and their transcriptions.