replacement
nounUK /rɪˈpleɪsmənt/
US /rɪˈpleɪsmənt/
A replacement is a new thing that takes the place of an old one.
The teacher found a replacement for the broken chair.
OTHER MEANINGS
2. The act of putting something new in place of something old.
The replacement of the old windows took two days.
3. A person who takes over another person's job or role.
She is the replacement for the manager who retired.
4. A spare part used to fix something that is broken.
He bought a replacement battery for his phone.