This research develops a new approach to query expansion by integrating Association Rules (AR) and Ontology. In the proposed approach. there are several steps to expand the query. namely (1) the document retrieval step; (2) the step of query expansion using AR; (3) the step of query expansion using Ontology. https://www.ealisboa.com/limited-stock-Purple-House-Arrethe-Bush-Balm-Soap-quick-super/