Provided are a synonym mining method, a synonym mining apparatus and a storage medium. The synonym mining method comprises: identifying corpus data in order to obtain a named entity set of at least one category, wherein a named entity set of each category comprises a plurality of named entities; clustering the plurality of named entities in the named entity set of each category to obtain a synonym candidate set corresponding to each category; and filtering, on the basis of a word form similarity and a context similarity, the synonym candidate set corresponding to each category in order to obtain a synonym set corresponding to each category.
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