1Search and rescue, an emergency service involving the detection and rescue of those who have met with an accident or mishap in dangerous or isolated locations.
搜索与救援
as modifierSAR helicopters
2Special Administrative Region (of the People's Republic of China).
（中华人民共和国）特别行政区
3Saudi riyal(s).
Definition of SAR in US English:
SAR
abbreviation
1Search and rescue, an emergency service involving the detection and rescue of those who have met with an accident or mishap in dangerous or isolated locations.
搜索与救援
as modifierSAR helicopters
2Special Administrative Region (of the People's Republic of China).