surrogate
adjective
1. providing or receiving nurture or parental care though not related by blood or legal ties
- surrogate father
noun
1. someone who takes the place of another person
Similar word(s): alternate, replacement
Definition categories: person, backup, relief, reliever, substitute
2. a person appointed to represent or act on behalf of others
Similar word(s): deputy
verb
1. (transitive) To replace or substitute something with something else; appoint a successor.