life saver

Someone or something that provides crucial help in a difficult situation. The term is almost always applied to situations that are not literally life-threatening. You're a real life-saver for coming over and fixing my flat tire. The knife I brought on the camping trip turned out to be a life saver when we realized we had forgotten a can opener.

Common Names:

Name	Pronounced	Usage
Stan	[stæn]
Reilly	['raili]
Raffaello	-	Italian
Philippa	FIL-i-pə (English), fi-LIP-ə (English)	English (British), German
RÚBen	-	Portuguese
Oghenero	-	Western African, Urhobo