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English definition of “prior”

prior

adjective [before noun] uk   /praɪər/ us    /praɪr/

prior adjective [before noun] (EARLIER)

C1 formal existing or happening before something else, or before a particular time: The course required no prior knowledge of Spanish. They had to refuse the dinner invitation because of a prior engagement (= something already planned for that time). prior to sth C1 before a particular time or event: the weeks prior to her death

prior adjective [before noun] (MORE IMPORTANT)

formal more important: Mothers with young children have a prior claim on funds.

prior

noun [C] uk   /praɪər/ us    /praɪr/
a man who is in charge of a priory or who is second in charge of an abbey
(Definition of prior from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
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