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English definition of “major”

major

adjective
 
 
/ˈmeɪdʒər/
IMPORTANT [always before noun] B2 more important or more serious than other things or people of a similar type: a major problem/issue a major city America has played a major role in the peace process.Being important and having importance
MUSIC in music, belonging to a key (= set of musical notes) that often produces a happy sound → Opposite minor adjectiveNotes of the musical scale
(Definition of major adjective from the Cambridge Learners Dictionary © Cambridge University Press)
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