buckle >> /ˈbək(ə)l/
Definition: [verb] Fasten with a buckle.
Example: he buckled his belt
Definition: [verb] Bend and give way under a weight or force.
Example: the bridge started shaking and then it began to buckle
Definition: [noun] A flat, typically rectangular frame with a hinged pin, used for joining the ends of a belt or strap.
Example: most rucksacks have quick release buckles
Definition: [noun] A cake made with fruit (typically blueberries) and having a streusel topping.