勲爵[kunshaku] peerage and order of merit
侯爵[koushaku] marquis
侯爵夫人[koushakufujin] marchioness
公爵[koushaku] prince
公爵夫人[koushakufujin] princess

爵位[shakui] peerage
授爵[jushaku] elevation to peerage
襲爵[shuushaku] succession to the peerage
叙爵[joshaku] conferring a peerage
人爵[jinshaku] worldly honors