simmer down

Từ điển WordNet v3.1 - WordNet Dictionary

verb

become quiet or calm, especially after a state of agitation
- After the fight both men need to cool off.
- It took a while after the baby was born for things to settle down again.
• Syn:
calm, calm down, cool off, chill out, settle down, cool it
• Derivationally related forms:
calm (for: calm)
• Hypernyms:
change state, turn
• Verb Frames:
- Something ----s
- Somebody ----s