To permit or allow (to be or to do), either actively or passively; grant or afford liberty (to): followed by an infinitive without to: as, to let one do as he pleases; to let slip an opportunity.Hence also much used as a kind of imperative auxiliary, with following infinitive, to form imperative first and third persons: as, let him be accursed (literally, allow him to be accursed); let them retire at once; let us pray; let me be listened to when I speak.To furnish with leave or ability by direct action or agency; enable, cause, or make to do or to be: followed by an infinitive without to (except in the passive), or by a definitive adjective or adverb (with ellipsis of go, come, or get before the adverb): as, I will let you know my decision; let me understand your claim; to let a person in (come in or enter); to let a man out of prison.To leave; allow to remain or abide; suffer to continue or proceed.To leave the care or control of; commit or intrust; resign; relinquish; leave.To leave or transfer the use of for a consideration; put to rent or hire; farm; lease: often with out: as, to let a house to a tenant; to let out boats or carriages for hire.To cause: with an infinitive, without to, in a quasi-passive use (the original subject of the infinitive being omitted): as, to let make (cause to be made); to let call (cause to be called). It is sometimes joined with do, without change of meaning.To allow or hold to be; regard; esteem.Leave alone; do not trouble or meddle with.To bring down; cause to be depressed or lowered.In metal-working, to lower the temper of, as a tool or spring of steel which has been made flint-hard. The temper is reduced by heating, the attainment of the required degree of hardness being indicated by the color.To allow to escape one, as an expression; utter carelessly or incidentally.To pass by or disregard.To take in; cheat; swindle; involve in something undesirable: as, he let me in for ten dollars.To discharge with an explosion, as a fire-cracker.To allow to escape, as a confined fluid or a secret.To extend by lessening a seam or a tuck, as a garment or a sail.To make narrower, as a seam; remove wholly or in part, as a tuck.To allow to slip away or escape; suffer to be lost.Synonyms Rent, Lease, etc. See hire.To permit or allow something to be done, occur, etc.: in certain colloquial phrases. See below.To be rented or leased: as, this house lets for so much a year.To pretend; feign; affect: as, let on that you did not hear.To strike out.To be dismissed or concluded: as, school lets out at three.Also used imperatively.n. A letting for hire or rent.To delay; retard; hinder; prevent; stop.To delay; hesitate; waver; be slow.To forbear; cease; leave off.To be a hindrance; stand in the way.n. A retarding; hindrance; obstacle; impediment; delay: now currently used only in the tautological phrase “without let or hindrance.”n. A diminutive suffix, as in bracelet, hamlet, rivulet, etc., and other words from or based upon the French.In cricket, to miss a chance of catching (a hatsman) out.n. In lawn-tennis, hand-tennis, and other games played with a net, a service-ball which strikes the top of the net and then goes into the proper court; also, any unforeseen or accidental hindrance of a like nature which the umpire may on appeal so designate.n. Abbreviations of Lettish.