sub·sti·tu·tion 
/ˌsʌbstəˈtu:ʃən, Brit ˌsʌbstəˈtju:ʃən/ noun
plural sub·sti·tu·tions /ˌsʌbstəˈtu:ʃən, Brit ˌsʌbstəˈtju:ʃən/ noun 1 : the act of substituting or replacing one person or thing with another [count] ▪ The coach made three substitutions in the second half of the game. ▪ I'd prefer rice with my steak instead of potatoes, but the menu says “no substitutions.” [noncount] ▪ Substitution of applesauce for oil is one way of reducing the fat in recipes. 2 [count] : someone or something that is or can be substituted for another
▪ The cookbook has a long list of substitutions for ingredients that may be hard to find.
▪ The cookbook has a long list of substitutions for ingredients that may be hard to find.
