The opening kick of each half of a game of football.
The opening sequence of any event.
The opening sequence of notes in a song, usually played by the song's main instrument, to indicate the beginning of the song.
In American football or Canadian football, a play that begins with a snap from the center while opposing teams are on either side of a line of scrimmage.
A rough fight.
In some team sports, especially soccer, a practice game which does not count on a team's record.
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To have, or be involved in, a scrimmage.