From 'Vocabulary' part of The ABC Of Plain Words by Sir E Gowers (1951)

To substitute means to put a person or thing in the place of another; it does not mean to take the place of another. When A is removed and B is put in its place, B is substituted for A, and A is replaced by B. We may write:

The Minister has substituted Jones for Smith as a member of the committee,

but we must not write:

Jones has substituted Smith as a member of the committee


Smith has been substituted by Jones as a member of the committee.

In the last two sentences the verb needed is replaced.

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