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English definition of “upright”

upright

adverb     /ˈʌp.raɪt/
B2 vertical and as straight as possible: to sit/stand upright The sound of breaking glass made her sit bolt upright (= sit with her back straight).Describing angles, lines and orientationsUp and upwardMoving upwards
(Definition of upright adverb from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)
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