replacement

Universal Words noun 1 [U] the act of replacing one thing with another, especially sth that is newer or better: the replacement of worn car parts * replacement windows 2 [C] a thing that replaces sth, especially because the first thing is old, broken, etc: a hip replacement * If your passport is stolen you should apply for a replacement immediately. 3 [C] ~ (for sb) a person who replaces another person in an organization, especially in their job: We need to find a replacement for Sue.