He tries to keep his private life and public life 'separate' (from each other). = He tries to keep his private life 'separate' from his public life.
('US') He fell and 'separated' [='dislocated'] his shoulder. [=caused the bone in his shoulder to move out of its proper position]
The competition has been easy to this point, but now it gets tough and we'll really begin to 'separate the men from the boys'.
(..) Air fresheners are high margin, right? At cents wholesale, yeah. Right. So I'm thinking we reorganize the display, separate the food scents from the nature scents. I mean, does bubble gum belong anywhere near ocean spray? No. And pine is still our biggest seller, right? (..)2013 TvShow: Breaking Bad Title: Blood Money Season: 5 Episode 9