heat is on the Basic English 850 List.
heart - heat - help
heat is one of the 1000 most common headwords.
heart - heat - heavy

Pronunciation

change

Singular
heat

Plural
heats

 
There is a lot of heat in one end of one piece of metal
  1. (uncountable) Heat is a kind of energy. It is the quality things have when they are warm or hot.
    This is a good coat. It keeps the heat in.
    The heat from the sun is making me feel hot and tired.

Plain form
heat

Third-person singular
heats

Past tense
heated

Past participle
heated

Present participle
heating

  1. To make something hot.
    I just need to heat up the food and then we can eat.