Definitions
1.nounA substitute (usually of a person, position or role)."A mixture of horseradish and mustard often serves as a surrogate for wasabi."
2.nounA person or animal that acts as a substitute for the social or pastoral role of another, such as a surrogate parent.
3.nounA deputy for a bishop in granting licences for marriage.
4.nounA politician or person of influence campaigning for a presidential candidate.
5.nounA judicial officer of limited jurisdiction, who administers matters of probate and interstate succession and, in some cases, adoptions.
6.nounAny of a range of Unicode codepoints which are used in pairs in UTF-16 to represent characters beyond the Basic Multilingual Plane.
7.nounAn ersatz good.
8.nounA unique identifier for an entity or object, not derived from application data.