He plans to 'thin' (out) the young carrots in the garden. [=to remove some of them so that there is more room between the remaining carrots]
His hair is a little 'thin' on top. = He's a little 'thin' on top. [=he does not have a lot of hair on the top of his head]
The bank's decision to raise rates could be 'the thin end of the wedge'. [=many other banks may also decide to raise rates]
(..) from parish to parish every few years, just like Geoghan and Porter. I think there's a pattern. Sounds thin. What else you got? Sacha's got another guy from a victims' organization... Phil Saviano. From SNAP? Oh, boy. We reported on him too. (..)2015 Spotlight
(..) Ben likes it. Yeah, it's not bad. It's just not Spotlight. What's just not Spotlight? The PD numbers. The numbers story. It feels thin. Oh. You got Cahill to talk? No. But I will. Good. Then we'll know if it's thin. How'd it go upstairs? (..)2015 Spotlight