| noun | a process of increasing by addition (as to a collection or group) “the art collection grew through accession” |
| noun | (civil law) the right to all of that which your property produces whether by growth or improvement |
| noun | something added to what you already have “the librarian shelved the new accessions” |
| noun | agreeing with or consenting to (often unwillingly) “accession to such demands would set a dangerous precedent” |
| noun | the right to enter |
| noun | the act of attaining or gaining access to a new office or right or position (especially the throne) “Elizabeth's accession in 1558” |
| verb | make a record of additions to a collection, such as a library |
| accede | verb | to agree or express agreement |
| admit | verb | allow participation in or the right to be part of; permit to exercise the rights, functions, and responsibilities of |
| access | verb | reach or gain access to |