replacement

Noun (6)

1. the act of furnishing an equivalent person or thing in the place of another“replacing the star will not be easy”Synonyms: replacing
2. someone who takes the place of another personSynonyms: surrogatealternate
3. an event in which one thing is substituted for another“the replacement of lost blood by a transfusion of donor blood”Synonyms: substitutionpermutationtranspositionswitch
4. a person or thing that takes or can take the place of anotherSynonyms: substitute
5. filling again by supplying what has been used upSynonyms: refillingreplenishmentrenewal
6. a person who follows next in order“he was President Lincoln's successor”Synonyms: successor