heat
To heat something is to make it hot. We heat food. We heat our homes. We also heat the environment through our activities. Friction results in heat.
- Paula heated some food in the microwave.
- Let me heat that up for you. (heat up = make hotter or warmer)
- We heat our home with a gas furnace.
- A fire produces heat.
- Can you feel the heat?
- Henry is feeling some heat at work.

Can you feel the heat?
a. heat = to increase temperature
Use “heat” as a verb when making something hotter:
heat / heated / heated / heating
- I heated some soup and had it for lunch.
- We heat our house with gas.
- Some people heat their homes with energy from solar panels or wind turbines.
- Human beings are heating up the planet through the burning of fossil fuels such as coal and petroleum.
- Maxine heats most of her food in a microwave oven.
a. heat = to increase temperature

- Power plants produce energy which we use to heat our homes.

- You can heat your food using a stove or an oven.
- He’s using an oven to heat his food.
b. heat = hotness
You can use “heat” as a noun when something is hot.
- The central part of the United States is experiencing a lot of heat right now. It’s going through a heatwave.
- Pedro is standing under a shady tree to avoid the heat.
- Where do you go to escape the heat?
- The heat that comes from a gas stove is easy to regulate, but the stove produces noxious gas.
- We use electric appliances for heat.
- Sandra enjoys the heat when she vacations in Florida during the month of January.
b. heat = hotness

- Long ago, human beings learned to use the heat from a fire to cook meat. This resulted in easier digestion.

- A hat can help protect your head from the sun and the heat.
c. expressions, idioms, slang
When used in an expression or as slang, the word heat” usually refers to a certain amount of pressure, stress, or competition.
- If you can’t stand the heat, stay out of the kitchen. (If you can’t handle the pressure, don’t engage in the activity that causes it. )
- The company is turning up the heat on Edgar because it suspects he’s been stealing from the company.
- She performed brilliantly In the heat of the moment.
- That guy is packing heat. (heat = a gun)
- Ed always comes up with the money he owes when the heat is on. (heat = pressure)
c. expessions, idioms, slang

- He’s feeling the heat from his teacher who suspects he’s been cheating. (heat = scrutiny or pressure)

- Despite maintaining a stead lead throughout the race, he was passed In the final heat. (the final heat = the last lap or the last part of a race)