administrator [administrators](law: one to whom the right of administration has been committed) noun [UK: əd.ˈmɪ.nɪ.streɪ.tə(r)] [US: əd.ˈmɪ.nə.ˌstre.tər]
executor [executors](one who carries out some task) noun [UK: ɪɡ.ˈze.kjʊ.tə(r)] [US: ɪg.ˈze.kjə.tər]