1. (noun) the act of attaining or gaining access to a new office or right or position (especially the throne)

• accession

1. (noun) the act of attaining or gaining access to a new office or right or position (especially the throne)

• attainment

1. (noun) the act of attaining or gaining access to a new office or right or position (especially the throne)

• accede
• enter
• access
• get at