From Longman Dictionary of Contemporary Englishinvertin‧vert /ɪnˈvɜːt $ -ɜːrt/ verb [transitive] formal TURNto put something in the opposite position to the one it was in before, especially by turning it upside down (=the bottom is on the top and the top is on the bottom) → upside down→ See Verb table
Examples from the Corpus
invert• Invert the cake and pan on a wire rack and remove the pan.• A camera inverts the image it receives.Origin invert (1500-1600) Latin invertere, from vertere “to turn” 