Hang up and Let down

Hang up verb - Cause to be hanging or suspended.

Let down and hang up are semantically related. in cause mental discomfort topic. In some cases you can use "Let down" instead a verb "Hang up".

Let down verb - To fall short in satisfying the expectation or hope of.

Hang up and let down are semantically related. Sometimes you can use "Hang up" instead a verb "Let down".