(countable) A clasp used for fastening two things together, such as the ends of a belt, or for retaining the end of a strap.
(Canada, heraldry) The brisure of an eighth daughter.
(roofing) An upward, elongated displacement of a roof membrane frequently occurring over insulation or deck joints. A buckle may be an indication of movement with the roof assembly.
A distortion, bulge, bend, or kink, as in a saw blade or a plate of sheet metal.
A curl of hair, especially a kind of crisp curl formerly worn; also, the state of being curled.