He died of 'natural causes'. [=he died because he was ill or old and not by being killed in an accident, battle, etc.]
She was adopted immediately after she was born and never knew her 'natural' [=(more commonly) 'birth'] parents.
a country rich in 'natural resources' [=a country that has many valuable plants, animals, minerals, etc.]
(..) yourself and clean that up. You clean that up. Apologise. I'm sorry. Turns out I'm not such a natural after all. Oh, fuck off. I'm just going to say this once. I deserve to be happy. I am allowed to move on. I have a good life (..)2016 TvShow: Fleabag Title: Episode #1.6 Season: 1 Episode 6
(..) and there are bottles for topping up on the little bar just inside. I'm the luckiest thing to have you. And erm... there. You're a natural. No, really though, this sexhibition isn't about me trying to get you all aroused it's about the beauty of sex and how it brings us all together. (..)2016 TvShow: Fleabag Title: Episode #1.6 Season: 1 Episode 6