Definition from Wiktionary, the free dictionary
kick-off (plural kick-offs)
- (soccer, American football) the opening kick of each half of a game of football.
2011 January 11, Jonathan Stevenson, “West Ham 2 - 1 Birmingham”, in BBC:
- The atmosphere at Upton Park before kick-off reflected the palpable tension surrounding the club right now
- (by extension) the opening sequence of any event
opening kick in football