replacement Synonyms

successor replenishment substitute renewal substitution surrogate switch alternate swap replacing restoration spare part permutation transposition refilling proxy exchange backup alternative change stand-in 2nd transition understudy turnover swop switching superseding supersede supersedure supersession supplanting supplantation supplanter substituting surrogation swapping standby placeholder substitute teacher substitutes successors alternates replacement part backup copy reconstitution ersatz prosthodontic arthroplasty fill-in