To reduce one's level of effort.
To disappoint; to betray or fail somebody
To soften in tempering.
Used other than figuratively or idiomatically: see let, down.
To allow to descend.
To lengthen by undoing and resewing a hem.
To reduce or diminish in amount, quantity, or extent; to lessen.
To take in the slack of (a rope).
To reduce (sail) by taking it in.
To become shorter.
To make shorter; to abbreviate.
To make short or friable, as pastry, with butter, lard, etc.
To make deficient (as to); to deprive (of).