the act of attaining or gaining access to a new office or right or position (especially the throne)
"Elizabeth's accession in 1558"
- rise to power
the right to enter
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