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English definition of “substitute”

substitute

verb
 
 
/ˈsʌbstɪtjuːt/
B2 [T] to use someone or something instead of another person or thing: You can substitute pasta for the rice, if you prefer.Replacing and exchanging
substitute for sb to do someone's job because they are not there: I'm substituting for her while she's on holiday.Replacing and exchanging
substitution
 
 
/ˌsʌbstɪˈtjuːʃən/ noun [C, U]
(Definition of substitute verb from the Cambridge Learners Dictionary © Cambridge University Press)
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