Englishfor English speakers
duration
Noun
—
The time something takes, or how much time it takes.
In the duration of his speech, ten more people came into the room
The duration of this event will be three hours.
For the duration of the work painting the rooms, you'll have to sleep in a different room.
of
Preposition
—
Made using.
It is a house of cards.
heat
Noun
—
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.
heat
Verb
—
To make something hot.
I just need to heat up the food and then we can eat.