D (勒) 勒 lei1 
rein in/ tie 
straffziehen,festbinden,zuschnüren, zubinden, schnallen Definitions from Unihan Copyright © 1991-2015 Unicode® Inc. All rights reserved.
勒 勒 strangle, tighten 勒* * + +
勒紧* * + +
勒死* * + +
勒令* * + +
勒索* * + +
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勒' + 勒* * + to rein to compel/ to force to carve
勒' + 勒* * + to strap tightly/ to bind