1.  substitute;  replacement;  substituting;  replacing
2.  stand-in;  proxy;  alternate;  deputy;  relief;  successor
3.  compensation;  exchange;  return
usu. as 〜代わりに, etc.
4.  another helping;  second helping;  seconds;  refill
usu. as お代わり
5.  upcoming program;  upcoming programme
esp. 替わり, 替り