#1 let v. [allow, permit] make it possible through a specific action or lack of action for something to happen; "This permits the water to rush in"; "This sealed door won't allow the water come into the basement"; "This will permit the rain to run off". wn
#2 let v. actively cause something to happen; "I let it be known that I was not interested". wn
#3 let v. [permit, allow, countenance] consent to, give permission; "She permitted her son to visit her estranged husband"; "I won't let the police search her basement"; "I cannot allow you to see your exam". wn
#4 let v. [get, have] cause to move; cause to be in a certain position or condition; "He got his squad on the ball"; "This let me in for a big surprise"; "He got a girl into trouble". wn
#5 let v. leave unchanged; "let it be". wn
vizzz