911
uk/ˌnaɪn.wʌnˈwʌn/us/ˌnaɪn.wʌnˈwʌn/thephonenumberused in the US tocalltheemergencyservices
911 （美国的紧急求救电话号码）Emergency services in general
- 999
- aid station
- air ambulance
- air drop
- air-dash
- Amber Alert
- blue-light
- CFR
- coastguard
- drop
- ice
- lifeguard
- lifesaver
- lockdown
- marshal
- Mayday
- rescue
- Silver Alert
- SOS
- the RAC