a life-saver

someone or something that gives you a lot of help when you are in a very difficult situation When you're stuck in traffic like this, a mobile phone's an absolute life-saver.

Common Names:

Name	Pronounced	Usage
Iesous	-	Biblical Greek
CzesŁAw	CHES-wahf	Polish
Malalai	-	Pashto
Arisztid	-	Hungarian
Damyan	-	Bulgarian
Uri	-	Biblical, Biblical Latin, Hebrew