instead of;  in place of;  as a substitute for;  in exchange for;  in return for;  to make up for
 to succeed;  to relieve;  to take the place of;  to substitute for;  to be exchanged;  to change (places with)
 instead;  but (on the other hand)
 substitute;  replacement;  stand-in;  proxy;  compensation;  exchange
 another helping;  second helping;  seconds;  command to have dog place its second paw in one's hand
 to replace;  to exchange;  to interchange;  to substitute
 to substitute for;  to stand in for;  to fill in for
 to do in place of or on behalf of (someone)
 change for the better;  improvement;  looking better (than before)
 with one's life (protect, etc.);  at the cost of one's life
 you can't make an omelet without breaking eggs;  you can't solve a problem without making some sacrifice
 to change places;  to relieve one another;  to replace someone
 change;  alteration;  substitute;  rate of exchange
 to supplant;  to supersede;  to replace;  to take the place of
 substitution;  replacement;  shifting;  change
 alternating;  taking turns
 to alternate;  to take turns
 you can't make an omelet without breaking eggs;  you can't solve a problem without making some sacrifice
 to replace;  to substitute;  to shift;  to change places
 alternating;  taking turns
 alternately;  in turn;  one after the other
 hard to replace (with other person)
 to relieve each other;  to take turns (to do)
 to change clothes (on someone else, e.g. child, doll);  to change the wallpaper or skin (of a smart phone, etc.)
 alternative name;  alternate name;  assumed name of a customer in a brothel (for anonymity);  stage name
 to fall out and be replaced;  to shed;  to moult (molt)