• A new item added to an existing collection of books, paintings, or artifacts
  • An amount added to an existing quantity of something
  • The formal acceptance of a treaty or agreement
  • The attainment or acquisition of a position of rank or power, typically that of monarch or president
  • the act of acceding and becoming joined [n -S] / to record the addition of (a book etc.) to a library [v -ED, -ING, -S]
  • The action or process of formally joining or being accepted by an association, institution, or group
  • to gain possession of by legal action [v ACCESSIONED, ACCESSIONING, ACCESSIONS]