Homophone search Leave feedback

Homophone search, or in other words phonic search, allows you to find not only the words specified in the search query, but also their homophones, that is, words that are pronounced the same but differ in meaning.

To enable homophone search, you must set the UseHomophoneSearch property of the SearchOptions class to true. By default, homophone search is disabled. Homophone search cannot be combined with case-sensitive search. If homophone search is enabled together with case-sensitive search, or if the homophone dictionary of the index is empty, the search returns an empty result and the error is reported through the ErrorOccurred event (see Search options).

The default homophone dictionary contains homophones only for the English language. To manage the homophone dictionary, see the Homophone dictionary page in the Managing dictionaries section.

The following example demonstrates the homophone search.

C#

string indexFolder = @"c:\MyIndex\";
string documentsFolder = @"c:\MyDocuments\";
 
// Creating an index in the specified folder
Index index = new Index(indexFolder);
 
// Indexing documents from the specified folder
index.Add(documentsFolder);
 
// Creating a search options object
SearchOptions options = new SearchOptions();
options.UseHomophoneSearch = true; // Enabling homophone search
 
// Search for the word 'coal'
// In addition to the word 'coal', the words 'cole' and 'kohl' will also be found
SearchResult result = index.Search("coal", options);

You may easily run the code from documentation articles and see the features in action in our GitHub examples:

• GroupDocs.Search for .NET examples

• GroupDocs.Search for Java examples

Along with full featured .NET library we provide simple, but powerful free Apps.

You are welcome to search over your PDF, DOC, DOCX, PPT, PPTX, XLS, XLSX and more with our free online Free Online Document Search App.