verb (used with object), let, let·ting.
verb (used without object), let, let·ting.
- to disappoint; fail.
- to betray; desert.
- to slacken; abate: We were too near success to let down in our efforts.
- to allow to descend slowly; lower.
- Aeronautics. (of an airplane) to descend from a higher to a lower altitude preparatory to making an approach and landing or a similar maneuver.
- to admit.
- to involve (a person) in without his or her knowledge or permission: to let someone in for a loss.
- Also let into. to insert into the surface of (a wall or the like) as a permanent addition: to let a plaque into a wall.
- Also let in on. to share a secret with; permit to participate in.
- to release by exploding.
- to free from duty or responsibility; excuse.
- to allow to go with little or no punishment; pardon: The judge let off the youthful offender with a reprimand.
- to reveal one's true feelings: She was terrified at the prospect, but didn't let on.
- to pretend: They let on that they didn't care about not being invited, but I could tell that they were hurt.
- to divulge; make known.
- to release from confinement, restraint, etc.
- to enlarge (a garment).
- to terminate; be finished; end: When does the university let out for the summer?
- to make (a let-out fur or pelt).
- to slacken; diminish; abate: This heat wave should let up by the end of the week.
- to cease; stop: The rain let up for a few hours.
Origin of let1
SYNONYMS FOR let
British Dictionary definitions for let up (1 of 3)
verb (intr, adverb)
British Dictionary definitions for let up (2 of 3)
verb lets, letting or let (tr; usually takes an infinitive without to or an implied infinitive)
- used as an auxiliary to express a request, proposal, or command, or to convey a warning or threatlet's get on; just let me catch you here again!
- (in mathematical or philosophical discourse) used as an auxiliary to express an assumption or hypothesislet "a" equal "b"
- used as an auxiliary to express resigned acceptance of the inevitablelet the worst happen
- to allow the occupation of (accommodation) in return for rent
- to assign (a contract for work)
- (conjunction) much less; not to mentionI can't afford wine, let alone champagne
- let be, leave alone or leave be to refrain from annoying or interfering withlet the poor cat alone
- to set free
- informal to make (a sound or remark) suddenlyhe let loose a hollow laugh
- informal to discharge (rounds) from a gun or gunsthey let loose a couple of rounds of ammunition
Word Origin for let
British Dictionary definitions for let up (3 of 3)
- a minor infringement or obstruction of the ball, requiring a point to be replayed
- the point so replayed
verb lets, letting, letted or let
Word Origin for let
Idioms and Phrases with let up (1 of 2)
See let down, def. 2.
Cease, stop entirely, as in The rain has let up so we can go out. [Late 1700s]
let up on. Be or become more lenient with, take the pressure off, as in Why don't you let up on the child? [Late 1800s]
Idioms and Phrases with let up (2 of 2)
In addition to the idioms beginning with let
- let alone
- let be
- let bygones be bygones
- let daylight through or into
- let down
- let down easy
- let down one's hair
- let drop
- let fly
- let go
- let grass grow
- let in on
- let it all hang out
- let it lay
- let it rip
- let me see
- let off
- let off steam
- let on
- let oneself go
- let one's hair down
- let out
- let ride
- let sleeping dogs lie
- let slide
- let slip
- let someone
- let someone down
- let someone have it
- let the cat out of the bag
- let the chips fall where they may
- let the grass grow under one's feet
- let the side down
- let up
- let well enough alone
- blow (let) off steam
- give (let) someone have his or her head
- (let someone) have it
- live and let live
Also see underleave.