0 If you let down a piece of clothing, you make it longer: --
My trousers shrank in the wash so I let them down.
1 If you let down something filled with air, you cause the air to go out of it: --
Someone let my tyres down while I was at the gym.
NYA ORD
European
May 10, 2021
DAGENS ORD
Shimmer
let sth down