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
Anneliese	ah-ne-LEE-zə (German), ahn-nə-LEE-sə (Dutch)	German, Dutch
XosÉ	-	Galician
Nino (2)	-	Ancient Near Eastern (Hellenized), Georgian
Jochebed	-	Biblical
Wilbur	['wilbə]
Botum	-	Khmer