Synonyms:
- advance,
- answer for,
- appear for,
- assist,
- back up,
- be instrumental,
- change places with,
- commission,
- crowd out,
- cut out,
- deputize,
- displace,
- double for,
- facilitate,
- fill in for,
- forward,
- front for,
- ghost,
- ghostwrite,
- go between,
- mediate,
- minister to,
- pinch-hit,
- pinch-hit for,
- promote,
- relieve,
- replace,
- represent,
- serve,
- speak for,
- spell,
- spell off,
- stand in for,
- subrogate,
- subserve,
- substitute for,
- succeed,
- supersede,
- supplant,
- swap places with,
- understudy,
- understudy for