WordNet: backup, backup man, fill-in, relief, reliever, stand-in, substitute

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"

• hypernym compeer, equal, match, peer

• hyponym locum, locum tenens

• hyponym double, stunt man, stunt woman

• hyponym alternate, replacement, surrogate

backup

• (suomi) varamies (synonyymi)

backup man

• (suomi) tuuraaja (synonyymi)

fill-in

• (englanti) fill in (derivationally related)
• (suomi) sijainen (synonyymi)

relief

• (suomi) varamies (synonyymi)

reliever

• (englanti) relieve (derivationally related)
• (suomi) lomittaja (synonyymi)

stand-in

• (englanti) stand in (derivationally related)
• (suomi) tuuraaja (synonyymi)

substitute

• (englanti) substitute (derivationally related)

• (englanti) substitute (derivationally related)

• (englanti) substitute (derivationally related)
• (suomi) sijainen (synonyymi)