An optical illusion consisting of a wireframe drawing of a cube, where a given face may be perceived as being either on the front or the back of the cube.

plural of Necker cube

Alternative form of rubbernecker

(countable) A surname from French. / Ellipsis of Necker Island.; An island in the Northwestern Hawaiian Islands, Hawaiian Islands, Pacific Ocean in Hawaii, United States; named after Jacques Necker

Ellipsis of Necker Island. An island in the British Virgin Islands, United Kingdom, in the West Indies, Caribbean, Atlantic Ocean; named after Jonathan de Neckere

A surname from German.

plural of Necker

Wearing a neckerchief.

(obsolete, colloquial) A neckerchief.

plural of neckercher