replace
verb [ T ]
uk/rɪˈpleɪs/ usto take the place of something or someone else:
The single farm payment will replace all subsidy schemes in January.
Four people have left the DA's office and not been replaced.
replace sth with sth The majority of British people are opposed to replacing the pound sterling with the euro.
replace sb as sth He'll be replaced as undersecretary by Kate Michael.
to change something that is old, damaged, lost, etc. for something newer or better:
The machines were too expensive to replace.
A lot of technology in this hospital is ancient and needs to be replaced.
The company guarantees to replace a stolen handset within 24 hours.