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substitute

 
/ˈsʌb·stɪˌtut/ v [I/T]

Definition

to use someone or something instead of another person or thing: [T] You can substitute oil for butter in this recipe. [I] He was called on to substitute for the ailing star last night. substitute
 
/ˈsʌb·stɪˌtut/ n [C]
Talk is a poor substitute for action.
(Definition of substitute v from the Cambridge Academic Content Dictionary © Cambridge University Press)

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