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]
(..) Mr. Stark was like, "Hey, Underoos!" I flipped in and stole Cap's shield. I was like, "What's up, everybody?" And... Hey, just a second! Coming! Hey. We have thin walls here. What are you doing, a little video diary? PETER: Yeah. - It's all right. - I'd do the same thing. HAPPY: I told him not to. (..)2017 Spider-Man: Homecoming