Synonym search in DOC is a type of full-text search, in which, in addition to the original word, all known synonyms in the text are also searched.
Synonym search in DOC uses a set of only English groups of synonyms available in the full-text search engine by default.
However, the GroupDocs.Search engine allows you to use synonyms for any language. To do this, synonyms need only be added to the index.
An example of a synonym search is the query "about", which will also match the words "some", "nearly", "around", and others.
You can also perform synonym search in many other file formats. Please see the full list below.