IN PREPARATION FOR, before, prior to, preliminary to.
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preparatory to phrase
before something else, as a preparation for it
He was gathering up his belongings preparatory to leaving.
Thesaurus: before a time or eventsynonym
Main entry: preparatory
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as a preparation for
she applied her makeup preparatory to leaving
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preparatory to
Preparatory to the job interview, I researched the company.
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Main Entry: ↑preparatory
Useful english dictionary. 2012.