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See also: top up



top-up ‎(not comparable)

  1. That serves as an addition
    English university students will have to pay top-up fees.



top-up ‎(countable and uncountable, plural top-ups)

  1. An addition.
    • 2013, BBC News, by Melissa Hogenboom, Applicants wanted for a one-way ticket to Mars
      Energy will be generated from solar panels, water will be recycled and extracted from soil and the astronauts will grow their own food - they will also have an emergency ration and regular top-ups as new explorers join every two years.
  2. Additional credit purchased for a mobile phone.
  3. (medicine) A dose of epidural anesthetic added to previously injected spinal anesthetic in combined spinal-epidural anesthesia