buckle

BUCKLE noun

[ C ] uk/ˈbʌkl/ us
a metal object used to fasten the ends of a belt or strap

пряжка
a silver buckle
buckle verb uk/ˈbʌkl/ us buckle verb
(BEND)

to bend, or to make something bend because of too much weight, heat, etc

сгибать(ся), подкоситься
His legs buckle d as he reached the finishing line.
buckle verb