This paper introduces the outline of Persian antonyms in keyword-based storage and retrieval of information. In this regard, a definition is provided of antonyms and their typology. Subsequently, the factors creating antonymy in words are addressed in the article. Then we explain the Automatic Antonym Recall Software (AARS) in information retrieval (IR). When a keyword is entered into the software, it will provide the antonym for the given query. If the keyword or its antonym is not meant by the searcher, he may change or modify the keyword and send a new query. In case of alternate spellings, the searcher may alter the spelling and send a new query. This would help prevent the deletion of relevant information and documents and retrieval of non-relevant information. The present findings may be used in teaching Persian to language learners and beginners.
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