Philstar.com on Twitter: "What is an "oligarchy"? https://t.co/6Xx9B0DcoR defines it as "a form of government in which all power is vested in a few persons or in a dominant class or clique"
Exploiting Time-based Synonyms in Searching Document Archives
Vested synonyms that belongs to phrasal verbs
PDF) The Oxford Thesaurus - An A-Z Dictionary Of Synonyms | Azeddin Zed - Academia.edu