Meaning in this text
Liberation or release from material existence — synonymous with Moksha. The Bhagavatam describes five types of mukti: sayujya (merging), sarupya (same form), salokya (same realm), sarshti (same opulences), and samipya (nearness). Pure devotees prefer the latter forms that preserve personal relationship with God.
On this site, Mukti is treated as a reading aid rather than a final doctrinal definition: use it to move from a question about a term into the chapters where the term actually appears.