(UK, idiomatic) To purchase a property as in investment, and to let it out for rental instead of living in it

(UK) Describing, or relating to a property bought as an investment, the purchaser letting it to others rather than living in it

(UK) A property of this kind.

An escape from punishment. / (engineering) A device for letting off, releasing, or giving forth, as the warp from the cylinder of a loom.

(electronics) A transient voltage spike that is allowed to pass through a power conditioning unit to the load

(transitive) To release. / (Canada, US, intransitive) Of a school: to finish for the day or term, allowing the pupils to go home. / To allow to operate at higher speed by adjusting controls.

(intransitive, of something intense) To cease or stop. / (intransitive) To cease or stop (doing something intense).

plural of let-through

(transitive, informal) To unleash, let loose, uncork. / (intransitive, usually with a prepositional phrase) To utter or release without restraint. / (slang) to fart

(idiomatic) To accidentally reveal a secret.