(transitive) To put a bonnet on. / (obsolete) To take off the bonnet or cap as a mark of respect; to uncover. / (dated, transitive) To pull the bonnet or cap down over the eyes of.

(idiomatic) Something of particular interest or concern; an obsession.

plural of bonnet

A ceremonial headdress, decorated with a trailing extension of eagle feathers, worn by some Native American peoples.

plural of Scotch bonnet

(gynaecology) An antiseptic solution used to sterilise and stain the vagina, cervix and surrounding skin during gynaecological procedures, and therefore reducing postoperative infection.

plural of coal-scuttle bonnet

(historical) A kind of woman's bonnet, shaped like an inverted coal scuttle.

(mathematics) An important statement about surfaces in differential geometry, connecting their geometry (in the sense of curvature) to their topology (in the sense of the Euler characteristic).

(UK, Australia, New Zealand) (of a motor vehicle) Having a long bonnet.