top up - definition and synonyms

phrasal verb [transitive]
present tense
I/you/we/theytop up
he/she/ittops up
present participletopping up
past tensetopped up
past participletopped up
  1. 1
    to completely fill a container that is already partly full

    I’ll just top up the teapot.

    1. a.
      to add more liquid to someone’s glass or cup in order to make it full

      Can I top you up?

      Would you like me to top up your drink?

  2. 2
    to add more to something in order to increase it to the level that you want or need

    a way to top up your earnings

See also main entry: top