transform

change or alter in form, appearance, or nature

“This experience transformed her completely”

change from one form or medium into another

change in outward structure or looks

“He transformed into a monster”

change (a bacterial cell) into a genetically distinct cell by the introduction of DNA from another cell of the same or closely related species

convert (one form of energy) to another

“transform energy to light”

increase or decrease (an alternating current or voltage)

subject to a mathematical transformation