Cooler (noun)

1. A device or container used to keep things cool, especially drinks or food.
2. A state of being cool or having a lower temperature.

Origin:

From cool + -er.

Examples:

1. He brought a cooler with ice and drinks to the beach.
2. The cooler was filled with sandwiches and fruit.
3. The air conditioning made the room feel cooler.
4. The sun was hot, but the shade was cooler.
5. The weather was cooler than expected.