calm-down
nounUK /ˌkɑːm ˈdaʊn/
US /ˌkɑːm ˈdaʊn/
A calm-down is when you stop being upset and feel quiet and peaceful again.
After the loud thunder, the baby needed a calm-down before bed.
OTHER MEANINGS
2. A short time you take to stop feeling angry or excited.
The teacher gave the kids a calm-down after recess.
3. Something that helps you feel peaceful, like a quiet place or a soft toy.
Her blanket is her favorite calm-down.
4. The act of making someone or something less noisy or wild.
The calm-down of the party happened when the music stopped.