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Definition of hi-def adjective from the Oxford Advanced Learner's Dictionary

hi-def

adjective

/ˌhaɪ ˈdef/

/ˌhaɪ ˈdef/

[only before noun] (informal)

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high-definition (= using or produced by a system that gives very clear detailed images)Topics TV, radio and newsc2

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See hi-def in the Oxford Advanced American Dictionary

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noun

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B2

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