Verb
1. 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""the insurance will replace the lost income""This antique vase can never be replaced"2. take the place or move into the position of;
"Smith replaced Miller as CEO after Miller left""the computer has supplanted the slide rule""Mary replaced Susan as the team's captain and the highest-ranked player in the school"3. put in the place of another; switch seemingly equivalent items;
"the con artist replaced the original with a fake Rembrandt""substitute regular milk with fat-free milk"4. put something back where it belongs;
"replace the book on the shelf after you have finished reading it""please put the clean dishes back in the cabinet when you have washed them"