(idiomatic) To leave something to follow its natural course.

plural of let

Of a property: being advertised for rent.

to not stop someone from doing something

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

(South Asia) let's learn, find out, or see [about] / (colloquial, rare) let us know, get back to us, keep us posted (often us in sense me)

hortative of go. / Let us begin or get started. (a call to put a plan into action) / (colloquial) Hurry up; be quick. / (colloquial) Bring it on. (an incitement to fight)

(informal) Let's go; used to suggest that a plan should be put into action.

(Internet, video games) A video recording or comparable broadcast in which a person plays a video game while commenting on the gameplay.

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