[ɪˈl(j)uːʒn], (Noun)

Definitions:
- an instance of a wrong or misinterpreted perception of a sensory experience
(e.g: stripes embellish the surface to create the illusion of various wood-grain textures)


Phrases:
- be under no illusion
- be under the illusion that

Origin:
Middle English (in the sense ‘deceiving, deception’): via Old French from Latin illusio(n-), from illudere ‘to mock’, from in- ‘against’ + ludere ‘play’