Turn Volume Sth Air Meaning Decrease Lower Heat

Meaning: to decrease or lower the volume, heat, power, etc. of an appliance by turning a knob or pressing a button

• turn down sth We'd better turn down the volume or the neighbours might complain.
  
  
• turn sth down It's cool enough now, so let's turn the air conditioner down.
  
  

Nouns often used as objects with turn down (1): television, TV, volume, air conditioner, heater