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]
(..) then we had a meat or a fish. Paulie did the prep work. He was doing a year for contempt... ... and had a wonderful system for garlic. He used a razor and sliced it so thin... ... it would liquefy in the pan with a little oil. It was a very good system. Vinnie was in charge of the tomato sauce. (..)1990 Goodfellas
(..) the front of the ship off? You want to send a man into space without the front of his ship? Mars' atmosphere is so thin, you don't need a lot of streamlining. By the time the ship's going fast enough (..)2015 The Martian
(..) Drop your socks and grab your crocs, we're about to get wet on this ride. Wait, wait! He's gone! Sorry buddy, had to thin out the herd. What's your twenty? - What are you doing? - I'm rebooting Rhodey's suit. Tony! Reboot complete. (..)2010 Iron Man 2