emergency number
nounUK /ɪˈmɜː.dʒən.si ˌnʌm.bər/
US /ɪˈmɝː.dʒən.si ˌnʌm.bɚ/
A special phone number you call when you need help fast.
In an emergency, call the emergency number right away.
OTHER MEANINGS
2. The phone number for a specific emergency service, such as police or fire.
She saved the fire emergency number on her phone.
3. A number to call for urgent help at a workplace or school.
The school's emergency number is posted by every door.
4. A contact number used during a disaster or crisis.
The city set up an emergency number after the storm.