1. (n.) The state or condition of being central; the combination of several parts into one whole; centralization.

2. (n.) The system by which power is centralized, as in a government.

Fabian socialism Fabianism Marxian socialism Marxism Nazism Saint-Simonism bipartisanship centralism coaction coadjuvancy coadministration coagency cochairmanship codirectorship collaboration collaborativeness collective farm collective ownership collectivity collegiality collusion commensalism common effort common enterprise common ownership communal effort communalism communion communism communitarianism community complicity concert concord concordance concurrence constitutionalism cooperation cooperative society cooperativeness democracy democratism duet duumvirate ecumenicalism ecumenicism ecumenism esprit esprit de corps fascism federalism fellow feeling fellowship feudalism feudality governmentalism guild socialism harmony imperialism joining of forces joint effort joint operation kibbutz kolkhoz mass action monarchism morale mutual assistance mutualism mutuality national socialism nationalization neofascism octet parliamentarianism parliamentarism phalansterism pluralism political principles pooling pooling of resources profit sharing public ownership pulling together quartet quintet reciprocity republicanism royalism septet sextet sharecropping socialism solidarity state ownership state socialism statism symbiosis synergism synergy team spirit teamwork town meeting trio triumvirate troika united action utopian socialism