replace (v.)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
We need to replace the secretary that left a month ago
This antique vase can never be replaced
the insurance will replace the lost income
replace (v.)take the place or move into the position of;
Mary replaced Susan as the team's captain and the highest-ranked player in the school
Smith replaced Miller as CEO after Miller left
replace (v.)put something back where it belongs;
replace the book on the shelf after you have finished reading it
Synonyms: put back
replace (v.)put in the place of another; switch seemingly equivalent items;
the con artist replaced the original with a fake Rembrandt