The Comprehensive Index of Pāli Suttas
By Reading Faithfully
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An exhaustive index of the terms, topics, proper names, and similes found in the Pāḷi Sutta Piṭaka.
Note that as of July, 2024 the index is still a work in progress, with the SN partially tagged and the DN not yet begun. As this is a work-in-progress, your feedback is welcome.