A device that produces and radiates heat, typically to raise the temperature of a room or building.
Turn on the heater; I'm cold.
A person who heats something, for example in metalworking.
A gun.
The thug pumped two rounds from his heater into her.
A fastball, especially one thrown at high velocity.
Jones threw a heater under his chin.
An extended winning streak.
Emmy went on a heater in Las Vegas and came back six thousand dollars richer.
A medieval European shield having a rounded triangle shape like a clothes iron.