Noun
1. the event consisting of the start of something;
"the beginning of the war"2. the time at which something is supposed to begin;
"they got an early start""she knew from the get-go that he was the man for her"3. the first part or section of something;
"`It was a dark and stormy night' is a hackneyed beginning for a story"4. the place where something begins, where it springs into being;
"the Italian beginning of the Renaissance""Jupiter was the origin of the radiation""Pittsburgh is the source of the Ohio River""communism's Russian root"5. the act of starting something;
"he was responsible for the beginning of negotiations"