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English definition of “principal”

principal

adjective [before noun]     /ˈprɪn.sɪ.pəl/
B1 first in order of importance : Iraq's principal export is oil . He was principal dancer at the Dance Theatre of Harlem. That was my principal reason for moving .Very important or urgent Grammar:Principal or principle?Principal as an adjective means ‘most important’:
(Definition of principal adjective from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)
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