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optical
mastery UK /ˈɒptɪkəl/ US /ˈɑptɪkəl/adjnoun
card 1 of 10 · fill in the blank
The magician created an optical _____ that made the audience believe the coin had disappeared.
card 1 of 10 · fill in the blank
The magician created an optical _____ that made the audience believe the coin had disappeared.