(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.

(intransitive) To distort or collapse under physical pressure; especially, of a slender structure in compression. / (transitive) To make bend; to cause to become distorted.

(transitive) To fasten using a buckle. / (Scotland) To unite in marriage.

A surname originating as an occupation for a maker or seller of buckles.

(intransitive, colloquial) To set to work.

Third-person singular simple present indicative form of buckle down

plural of scleral buckle

(idiomatic) To put forth the needed effort; to focus; become serious; apply oneself (e.g. to work or study).

(transitive) To fasten with a buckle. / (intransitive, idiomatic) To fasten one's seat belt or safety belt.

To execute a difficult step in dancing.