Synonyms/Hypernyms (Ordered by Estimated Frequency) of noun substitution

2 senses of substitution

Sense 1
substitution, permutation, transposition, replacement, switch -- (an event in which one thing is substituted for another; "the replacement of lost blood by a transfusion of donor blood")
       => variation, fluctuation -- (an instance of change; the rate or magnitude of change)

Sense 2
substitution, exchange, commutation -- (the act of putting one thing or person in the place of another: "he sent Smith in for Jones but the substitution came too late to help")
       => change -- (the action of changing something; "the change of government had no impact on the economy"; "his change on abortion cost him the election")