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]
(..) Have you ever been around or worked with black people? No, sir, I would like to thank and dismiss Miss Roberts, please, - Mr, Locket, the line is getting thin, - I think it is highly unusual that every potential juror believes in the death penalty, No one stacked the deck, People in (..)1994 The Glass Shield