1. devices or mechanisms used to propel or send forth projectiles, rockets, or other objects
2. people who start or initiate something, especially a new product, service, or venture

Examples

• The military tested new missile launchers at the base.
• Rocket launchers propelled the spacecraft into orbit.
• The grenade launchers were stored in the armory.
• The startup’s launchers presented their app to investors.
• Product launchers coordinated the marketing campaign.
• The launchers of the charity worked tirelessly to raise funds.
• Torpedo launchers were installed on the submarine.