(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.

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

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

(formal) To ensure that others are aware, even if not telling them directly.

(idiomatic, obsolete) To aim a blow; to strike with force; to attack; to shoot (an arrow or firearm). / (obsolete, nautical) To allow (a vessel) to be propelled by the wind, current or tide.

Used other than figuratively or idiomatically: see let's, dance. / (slang) An invitation to fight.

plural of let's play

plural of let-up

used as a filled pause to indicating thinking or pondering, but allowing hearer to participate

(ditransitive) To inform (someone) (of something).