for sth(
1 one of the things from which sth is made, especially one of the foods that are used together to make a particular dish:
Coconut is a basic ingredient for many curries. * Mix all the ingredients in a bowl. * Our skin cream contains only natural ingredients. * The only active ingredient in this medicine is aspirin.
2 one of the things or qualities that are necessary to make sth successful:
the essential ingredients for success * It has all the ingredients of a good mystery story.
