Finds grammatical variations on endings, like applies, applied, applying in a search for apply

Finds words that sound alike, like Smythe in a search for Smith

Finds word synonyms using a comprehensive English language thesaurus

Finds words even if they are misspelled. A search for alphabet with a fuzziness of 1 would also find alphaqet. With a fuzziness of 3, the same search would find both alphaqet and alpkaqet