Definition of sign up to phrasal verb from the Oxford Advanced Learner's Dictionary


sign up to

 phrasal verb
phrasal verb
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Phrasal Verbs
  1. 1(British English) to commit yourself to a project or course of action, especially one that you have agreed with a group of other people, countries or organizations How many countries have signed up to the Kyoto protocol on climate change?
  2. 2sign up to do something to agree to take part in something We have about 100 people signed up to help so far.
See the Oxford Advanced American Dictionary entry: sign up to