Verb
1. bring into being;
"He initiated a new program""Start a foundation"2. take the lead or initiative in; participate in the development of;
"This South African surgeon pioneered heart transplants"3. accept young people into society, usually with some rite;
"African men are initiated when they reach puberty"4. bring up a topic for discussion
5. prepare the way for;
"Hitler's attack on Poland led up to World War Two"