rest in peace phrase 1verb 1forms 3 phrase1 •A blessing or expression of hope that a deceased person is at peace.May the souls of the recently departed rest in peace. verb1 •(euphemistic) To have passed away, or to have died.In his latter years he sought an asylum with his relatives, the O'Conors, of Belanagar, and it was probably there that he rested in peace, in 1735. — 1882 formsrested in peace · resting in peace · rests in peace