let down

let down (third-person singular simple present lets down, present participle letting down, simple past and past participle let down)

1. Used other than with a figurative or idiomatic meaning: see let,‎ down.
2. (transitive) To allow to descend.

   They let down the rope and I fastened it to the basket.

3. (transitive, idiomatic) To disappoint; to betray or fail somebody

   I promised him I would meet him there, and I will not let him down.

4. (transitive, of clothing) To lengthen by undoing and resewing a hem.
5. (intransitive) To reduce one's level of effort.
6. To soften in tempering.

   to let down tools or cutlery

• let one's hair down
• let someone down gently

• let-down (noun) and letdown