politico UK /pəˈlɪtɪkəʊ/US /pəˈlɪtɪkoʊ/ noun5 •(informal) A politician.The French have a word for it: cohabitation. It can mean politicos of different persuasions tolerating each other, or loving couples moving in together. — 2004 •(informal) Someone involved in the professional life of a politician or a political campaign to varying degrees. •(informal) Someone who follows politics regularly and is knowledgeable about at least the political news in their local area. •(informal) A prominent activist. •(informal) Someone with strong views regarding a political cause. formspoliticoes · politicos