haven /ˈheɪvən/noun 4verb 1forms 3 noun4 •a place where someone can be safe and protectedSince its conception, the European Union has been a haven for those seeking refuge from war, persecution and poverty in other parts of the world. — 2011 •(old-fashioned) A harbour or anchorage protected from the sea. •A peaceful or tranquil place. •A certain type of function on sets of vertices in an undirected graph, able to be used by an evader to win a pursuit-evasion game on the graph. verb1 •To put into, or provide with a haven. formshavened · havening · havens