# Package org.apache.lucene.search.spell

Suggest alternate spellings for words.

See: Description

- Interface Summary
  Interface | Description
  --- | ---
  Dictionary | A simple interface representing a Dictionary.
  StringDistance | Interface for string distances.
  TermFreqIterator | Interface for enumerating term,weight pairs.

- Class Summary
  Class | Description
  --- | ---
  CombineSuggestion | A suggestion generated by combining one or more original query terms
  DirectSpellChecker | Simple automaton-based spellchecker.
  DirectSpellChecker.ScoreTerm | Holds a spelling correction for internal usage inside `DirectSpellChecker`.
  HighFrequencyDictionary | HighFrequencyDictionary: terms taken from the given field of a Lucene index, which appear in a number of documents above a given threshold.
  JaroWinklerDistance | Similarity measure for short strings such as person names.
  LevensteinDistance | Levenstein edit distance class.
  LuceneDictionary | Lucene Dictionary: terms taken from the given field of a Lucene index.
  LuceneLevenshteinDistance | Damerau-Levenshtein (optimal string alignment) implemented in a consistent way as Lucene's FuzzyTermsEnum with the transpositions option enabled.
  NGramDistance | N-Gram version of edit distance based on paper by Grzegorz Kondrak, "N-gram similarity and distance".
  PlainTextDictionary | Dictionary represented by a text file.
  SpellChecker | Spell Checker class (Main class) (initially inspired by the David Spencer code).
  SuggestWord | SuggestWord, used in suggestSimilar method in SpellChecker class.
  SuggestWordFrequencyComparator | Frequency first, then score.
  SuggestWordQueue | Sorts SuggestWord instances
  SuggestWordScoreComparator | Score first, then frequency
  TermFreqIterator.TermFreqIteratorWrapper | Wraps a BytesRefIterator as a TermFreqIterator, with all weights set to `1`
  WordBreakSpellChecker | A spell checker whose sole function is to offer suggestions by combining multiple terms into one word and/or breaking terms into multiple words.

- Enum Summary
  Enum | Description
  --- | ---
  SuggestMode | Set of strategies for suggesting related terms
  WordBreakSpellChecker.BreakSuggestionSortMethod | Determines the order to list word break suggestions

## Package org.apache.lucene.search.spell Description

Suggest alternate spellings for words. Also see the spell checker Wiki page.

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