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Definition of up- in English:

up-

prefix

  • 1(added to verbs and their derivatives) upward.

    ‘upturned’
    • ‘upthrow’
    1. 1.1To a more recent time; to a newer or better state.
      ‘update’
      • ‘upbeat’
      • ‘upgrade’
      • ‘upscale’

  • 2(added to nouns) denoting (direction of) motion up.

    ‘upriver’
    • ‘uphill’
    • ‘upwind’

  • 3(added to nouns) higher.

    ‘upland’
    • ‘upstroke’
    1. 3.1Increased.
      • ‘up-tempo’

Pronunciation

up-

/əp/