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Meaning of Necker cube | Babel Free

Noun CEFR B2

Definitions

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.

CEFR level

B2
Upper Intermediate
This word is part of the CEFR B2 vocabulary — upper intermediate level.
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See also

Necker Island necker's knob neckercher Neckerchief Neckerchiefs Neckerian

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