the first public showing of an aircraft.
Informal. the introduction or inauguration of a new product or service, as by an advertising campaign, public announcement, or exhibition: the most lavish rollout in soft-drink history.
an offensive maneuver in which
the quarterback, having the option to run or pass, takes the ball from the center, moves back a distance toward his goal line
, and then moves forward and toward a sideline.
1955–60; noun use of verb phrase roll out