#1 buckle n. fastener that fastens together two ends of a belt or strap; often has loose prong. wn
#2 buckle v. [clasp] fasten with a buckle or buckles. wn
#3 buckle v. [crumple] fold or collapse; "His knees buckled". wn
#4 buckle v. [heave, warp] bend out of shape, as under pressure or from heat; "The highway buckled during the heat wave". wn
#5 buckle n. [warp] a shape distorted by twisting or folding. wn
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