The question doesn’t even make sense. You have to redefine it to “purpose” or some other word to even get started. The only literal interpretation is “what does ‘life’ mean?”, which is just something like “a metabolic system capable of Darwinian evolution”.

Oruxmaps is pretty good too.

I’m not sure this is going to help your mental state, but the word is “worst”. A is worse than B, but C is the worst of all.