Definition of "Replace" :

verb: substitute a person or thing for (another that is broken or inefficient or lost or no longer working or yielding what is expected)

"He replaced the old razor blade."

verb: put something back where it belongs

"Replace the book on the shelf after you have finished reading it."

verb: put in the place of another; switch seemingly equivalent items

"The con artist replaced the original with a fake Rembrandt."

verb: take the place or move into the position of

"Smith replaced Miller as CEO after Miller left."