Heat

noun

1. Thermal energy.

   "This furnace puts out 5000 BTUs of heat.   That engine is really throwing off some heat.   Removal of heat from the liquid caused it to turn into a solid."

2. The condition or quality of being hot.

   "Stay out of the heat of the sun!"

3. An attribute of a spice that causes a burning sensation in the mouth.

   "The chili sauce gave the dish heat."

4. A period of intensity, particularly of emotion.

   "It's easy to make bad decisions in the heat of the moment."

5. An undesirable amount of attention.

   "The heat from her family after her DUI arrest was unbearable."