fill-in

fill-in (fln)

n. Informal

1. One that serves as a substitute for another.

2. A short informative summary.

Thesaurus

Noun

1.

fill-in - someone who takes the place of another (as when things get dangerous or difficult); "the star had a stand-in for dangerous scenes"; "we need extra employees for summer fill-ins" backup man, reliever, stand-in, backup, substitute, relief compeer, equal, peer, match - a person who is of equal standing with another in a group locum, locum tenens - someone (physician or clergyman) who substitutes temporarily for another member of the same profession stunt man, stunt woman, double - a stand-in for movie stars to perform dangerous stunts; "his first job in Hollywood was as a double for Clark Gable" alternate, surrogate, replacement - someone who takes the place of another person