surrogate

IPA: sˈɝʌgʌt

A substitute (usually of a person, position or role).
A person or animal that acts as a substitute for the social or pastoral role of another, such as a surrogate parent.
(chiefly Britain) A deputy for a bishop in granting licences for marriage.
(US, politics) A politician or person of influence campaigning for a presidential candidate.
(US law) A judicial officer of limited jurisdiction, who administers matters of probate and intestate succession and, in some cases, adoptions.
(computing) Any of a range of Unicode codepoints which are used in pairs in UTF-16 to represent characters beyond the Basic Multilingual Plane.
(economics) An ersatz good.
(databases) Ellipsis of surrogate key. [(databases) A unique identifier for an entity or object, not derived from application data.]

(transitive) To replace or substitute something with something else; to appoint a successor.

Examples of "surrogate" in Sentences

The surrogate mother carried the couple's baby to term, providing them with the gift of parenthood
The surrogate candidate underwent rigorous screening to ensure she was a suitable match for the intended parents
In some cultures, a surrogate may be used to bear a child for a family member who is unable to conceive
The surrogate felt a deep connection with the unborn child she carried, despite knowing she would not raise the baby herself
The surrogate agency helped facilitate the legal and emotional aspects of the surrogacy process for all parties involved