Use the word "heat" when talking about something that is hot.
This is what it looks like as a verb:
I’m heating some water for tea.
Heat that soup in the microwave.
She heated the oven to 350 degrees. (or)
She preheated the oven to 350 degrees.
The day is heating up fast.
Here it is as a noun:
I love the heat in the summer.
She can’t stand the heat, so she runs her air conditioning all the time in the summer.
People go to the beach to beat the heat.
You can feel the heat coming from this fire.
If you can’t stand the heat, get out of the kitchen. (This is an expression. If something is too difficult for you, stop doing it or quit the activity.)
The heat is causing him to sweat.
He’s sweating from the heat.
It’s possible to use "heat" as an adjective:
He’s suffering from heat exhaustion. (This is a medical condition. If someone is outside in the heat for too long, he or she may suffer physically.)
