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Wordage.info / accession

Exact Match:

the act of attaining or gaining access to a new office or right or position (especially the throne); "Elizabeth's accession in 1558"
agreeing with or consenting to (often unwillingly); "accession to such demands would set a dangerous precedent"; "assenting to the Congressional determination"
something added to what you already have; "the librarian shelved the new accessions"; "he was a new addition to the staff"
(civil law) the right to all of that which your property produces whether by growth or improvement
a process of increasing by addition (as to a collection or group); "the art collection grew through accession"
make a record of additions to a collection, such as a library