change in outward structure or looks; "He transformed into a monster"; "The salesman metamorphosed into an ugly beetle"
increase or decrease (an alternating current or voltage)
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"
change or alter in form, appearance, or nature; "This experience transformed her completely"; "She transformed the clay into a beautiful sculpture"; "transubstantiate one element into another"
establish the validity of something, as by an example, explanation or experiment; "The experiment demonstrated the instability of the compound"; "The mathematician showed the validity of the conjecture"
prove formally; demonstrate by a mathematical, formal proof
obtain probate of; "prove a will"
take a trial impression of
be shown or be found to be; "She proved to be right"; "The medicine turned out to save her life"; "She turned up HIV positive"