up
adjective/ʌp/
/ʌp/
- [only before noun] directed or moving upwards
- an up stroke
- the up escalator
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- [not before noun] (informal) cheerful; happy or excited
- The mood here is resolutely up.
- [not before noun] (of a computer system) working
- Our system should be up by this afternoon.
Word OriginOld English up(p), uppe, of Germanic origin; related to Dutch op and German auf.
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