let down

US /let daʊn/

UK /let daʊn/

1.

to disappoint someone by failing to do what they expect or hope

:

•

I promised to help him, and I don't want to let him down.

•

She felt completely let down by her friends.

:

disappoint fail betray desert abandon

2.

to lower something or allow it to fall

:

•

Can you let down the blinds, please? The sun is too bright.

•

She decided to let down her hair after the formal event.

:

lower drop unfurl release

:

let let in let on let's let in on let your hair down down