To turn (something) upside down or inside out; to place in a contrary order or direction.

“to invert a cup, the order of words, rules of justice, etc.”

To move (the root note of a chord) up or down an octave, resulting in a change in pitch.

To undergo inversion, as sugar.

Having the order or direction changed; for example turned upside down, reversed or in any other way opposite or contrary.

Homosexual.

(of a chord) Having the lowest note transposed an octave higher.