B1
the quality of being hot or warm, or the temperature of something
Dictionary examples:
In this heat, I'm not walking to work. I'm melting there! (0.0)
In this heat, my chocolate bar turned into hot chocolate in my pocket! (0.0)
The heat in the office was so high, our computers started to sweat! (0.0)
the heat of the sun/fire (15.2)
She always wore a coat, even in the heat of summer. (21.7)
Cook the sauce on high/medium/low heat. (23.2)
How do you manage to work in this heat without air conditioning? (54.2)